Earth and Space Science - 5th Grade Science
Card 0 of 20
Mrs. Johnson's class is investigating the brightness of stars. Mrs. Johnson sets up the investigation, and the students begin working. The first two student volunteers held identical flashlights at an equal distance from the whiteboard. The class decides after noting the lights on the board look the same that when two stars are at an equal distance, they have the same actual brightness. For the second part of the investigation, two student volunteers held the identical flashlights at two different distances. Students observed than the flashlight that is closer to the whiteboard appears to be brighter than the flashlight that is further away from the whiteboard. Their observations are recorded in the data table below.
What inference can the students draw from this demonstration?
Mrs. Johnson's class is investigating the brightness of stars. Mrs. Johnson sets up the investigation, and the students begin working. The first two student volunteers held identical flashlights at an equal distance from the whiteboard. The class decides after noting the lights on the board look the same that when two stars are at an equal distance, they have the same actual brightness. For the second part of the investigation, two student volunteers held the identical flashlights at two different distances. Students observed than the flashlight that is closer to the whiteboard appears to be brighter than the flashlight that is further away from the whiteboard. Their observations are recorded in the data table below.
What inference can the students draw from this demonstration?
The flashlights in this demonstration are placeholders for stars. There is no way that a class can investigate a real star close up, so an alternative light source must be used. The Victoria Department of Education and Training gives some background information on stars (or a flashlight in this case), "There are more stars in the sky than anyone can easily count, but they are not scattered evenly, and they are not all the same in brightness or color." The closer a source of light is to our line of vision, the larger it will appear and the brighter. The flashlight that is only 2 feet from the board will appear brighter and more massive than the flashlight held at 4 feet.
The flashlights in this demonstration are placeholders for stars. There is no way that a class can investigate a real star close up, so an alternative light source must be used. The Victoria Department of Education and Training gives some background information on stars (or a flashlight in this case), "There are more stars in the sky than anyone can easily count, but they are not scattered evenly, and they are not all the same in brightness or color." The closer a source of light is to our line of vision, the larger it will appear and the brighter. The flashlight that is only 2 feet from the board will appear brighter and more massive than the flashlight held at 4 feet.
Compare your answer with the correct one above
Four students are making claims about stars and their apparent brightness.
- Ursula: "The star that appears brightest to us is the Sun because it is the largest in the galaxy."
- Gretel: "The Sun appears to be the brightest star because it is the closest to Earth."
- Hansel: "The Sun is the brightest star when looking from Earth because it is the hottest."
- Phoebe: "I have seen brighter stars than the Sun; it isn't that great."
Their teacher shares the following information from NASA, "Of course, the star that appears the brightest to all of us on Earth is the Sun. Although it is a rather typical star, not all that different from many of the ones you see at night, we live so close to it that it outshines everything else. Even the next closest star is more than a quarter of a million times farther from Earth, so it is not surprising that the light from the Sun overwhelms that from other stars."
Which student's argument is supported by the teacher's research?
Source: https://spaceplace.nasa.gov/review/dr-marc-space/brightest-star.html
Four students are making claims about stars and their apparent brightness.
- Ursula: "The star that appears brightest to us is the Sun because it is the largest in the galaxy."
- Gretel: "The Sun appears to be the brightest star because it is the closest to Earth."
- Hansel: "The Sun is the brightest star when looking from Earth because it is the hottest."
- Phoebe: "I have seen brighter stars than the Sun; it isn't that great."
Their teacher shares the following information from NASA, "Of course, the star that appears the brightest to all of us on Earth is the Sun. Although it is a rather typical star, not all that different from many of the ones you see at night, we live so close to it that it outshines everything else. Even the next closest star is more than a quarter of a million times farther from Earth, so it is not surprising that the light from the Sun overwhelms that from other stars."
Which student's argument is supported by the teacher's research?
Source: https://spaceplace.nasa.gov/review/dr-marc-space/brightest-star.html
Gretel's claim is supported by the research from NASA that her teacher presented. The Sun appears to be the brightest star because it is closest to Earth. It does not appear brightest because its the hottest, largest, or the brightest in the galaxy. "We live so close to it that it outshines everything else." This is the reason the Sun looks so bright.
Gretel's claim is supported by the research from NASA that her teacher presented. The Sun appears to be the brightest star because it is closest to Earth. It does not appear brightest because its the hottest, largest, or the brightest in the galaxy. "We live so close to it that it outshines everything else." This is the reason the Sun looks so bright.
Compare your answer with the correct one above
NASA gives background information on the brightness of stars, "To find out the true brightness of a star; scientists need to know how far it is. Although there are some very clever ways of gauging the distances to stars, they generally work well only for stars that are in the Sun's neighborhood of the Milky Way galaxy. The more distant stars are just so fantastically far from us that measuring their distances accurately is too difficult. Making it still harder to know how bright a star is, there is a kind of patchy fog between the stars - space is not truly empty. Although it is not the same as the fog on Earth, gas and dust in space can dim the light of stars. Without a good way to know how much of this interstellar fog is blocking the light, there is no reliable way to discover the true brightness of a star."
Which piece of text evidence supports the claim that it is possible to measure the actual brightness of stars?
Source: https://spaceplace.nasa.gov/review/dr-marc-space/brightest-star.html
NASA gives background information on the brightness of stars, "To find out the true brightness of a star; scientists need to know how far it is. Although there are some very clever ways of gauging the distances to stars, they generally work well only for stars that are in the Sun's neighborhood of the Milky Way galaxy. The more distant stars are just so fantastically far from us that measuring their distances accurately is too difficult. Making it still harder to know how bright a star is, there is a kind of patchy fog between the stars - space is not truly empty. Although it is not the same as the fog on Earth, gas and dust in space can dim the light of stars. Without a good way to know how much of this interstellar fog is blocking the light, there is no reliable way to discover the true brightness of a star."
Which piece of text evidence supports the claim that it is possible to measure the actual brightness of stars?
Source: https://spaceplace.nasa.gov/review/dr-marc-space/brightest-star.html
There is no piece of text evidence that supporters the claim that it is possible to measure the actual brightness of stars. There are two lines from NASA that dispute the claim, "To find out the true brightness of a star; scientists need to know how far it is. Without a good way to know how much of this interstellar fog is blocking the light, there is no reliable way to discover the true brightness of a star.". This evidence makes it clear that it is not possible to measure the distance or the brightness of a star.
There is no piece of text evidence that supporters the claim that it is possible to measure the actual brightness of stars. There are two lines from NASA that dispute the claim, "To find out the true brightness of a star; scientists need to know how far it is. Without a good way to know how much of this interstellar fog is blocking the light, there is no reliable way to discover the true brightness of a star.". This evidence makes it clear that it is not possible to measure the distance or the brightness of a star.
Compare your answer with the correct one above
Dot makes a statement to her teacher. "The Sun is the brightest star in the galaxy and no other star can compare." She provides this evidence from NASA to support her argument, "Although we don't know which star truly is the brightest, we know some are remarkably bright. You can see one of them any clear night this summer. Deneb is northeastern of the three stars that form a large and easily seen grouping called the Summer Triangle. While Deneb shines the brightest in the constellation Cygnus, 17 other stars glow brighter in our night skies. But Deneb is much farther from Earth than most of the other stars you see, and this giant is around 100,000 times brighter than the Sun. If Deneb were the same distance from Earth as Vega, another star in the Summer Triangle, not only would it outshine all the stars and planets visible at night, but it would even be bright enough to see in the daytime!"
Dot's argument and evidence are in sync.
Source: https://spaceplace.nasa.gov/review/dr-marc-space/brightest-star.html
Dot makes a statement to her teacher. "The Sun is the brightest star in the galaxy and no other star can compare." She provides this evidence from NASA to support her argument, "Although we don't know which star truly is the brightest, we know some are remarkably bright. You can see one of them any clear night this summer. Deneb is northeastern of the three stars that form a large and easily seen grouping called the Summer Triangle. While Deneb shines the brightest in the constellation Cygnus, 17 other stars glow brighter in our night skies. But Deneb is much farther from Earth than most of the other stars you see, and this giant is around 100,000 times brighter than the Sun. If Deneb were the same distance from Earth as Vega, another star in the Summer Triangle, not only would it outshine all the stars and planets visible at night, but it would even be bright enough to see in the daytime!"
Dot's argument and evidence are in sync.
Source: https://spaceplace.nasa.gov/review/dr-marc-space/brightest-star.html
Dot's argument is in complete contradiction with the evidence she provided! The statement from NASA says that there is a star 100,000 times brighter than the Sun, and if it were closer, it would be bright enough to see in the daytime. This is the opposite of her claim and argument. The Sun appears brightest because it is closest to us and is the only star in our Solar System, but there are other stars in the galaxy that are much brighter.
Dot's argument is in complete contradiction with the evidence she provided! The statement from NASA says that there is a star 100,000 times brighter than the Sun, and if it were closer, it would be bright enough to see in the daytime. This is the opposite of her claim and argument. The Sun appears brightest because it is closest to us and is the only star in our Solar System, but there are other stars in the galaxy that are much brighter.
Compare your answer with the correct one above
"To find out the true brightness of a star, scientists need to know how far it is. Although there are some very clever ways of gauging the distances to stars, they generally work well only for stars that are in the Sun's neighborhood of the Milky Way galaxy. The more distant stars are just so fantastically far from us that measuring their distances accurately is too difficult. Making it still harder to know how bright a star is, there is a kind of patchy fog between the stars - space is not truly empty. Although it is not the same as the fog on Earth, gas and dust in space can dim the light of stars. Without a good way to know how much of this interstellar fog is blocking the light, there is no reliable way to discover the true brightness of a star." - NASA
Which piece of evidence from NASA's passage describes a complication with measuring a star's actual brightness?
Source: https://spaceplace.nasa.gov/review/dr-marc-space/brightest-star.html
"To find out the true brightness of a star, scientists need to know how far it is. Although there are some very clever ways of gauging the distances to stars, they generally work well only for stars that are in the Sun's neighborhood of the Milky Way galaxy. The more distant stars are just so fantastically far from us that measuring their distances accurately is too difficult. Making it still harder to know how bright a star is, there is a kind of patchy fog between the stars - space is not truly empty. Although it is not the same as the fog on Earth, gas and dust in space can dim the light of stars. Without a good way to know how much of this interstellar fog is blocking the light, there is no reliable way to discover the true brightness of a star." - NASA
Which piece of evidence from NASA's passage describes a complication with measuring a star's actual brightness?
Source: https://spaceplace.nasa.gov/review/dr-marc-space/brightest-star.html
NASA's passage explains that space dust is a complication with measuring a star's actual brightness. Stars are extremely far from Earth, and the interference of space dust can cause scientists to be unable to measure the distance accurately. The dust is much like a fog is on Earth adn clouds the view.
NASA's passage explains that space dust is a complication with measuring a star's actual brightness. Stars are extremely far from Earth, and the interference of space dust can cause scientists to be unable to measure the distance accurately. The dust is much like a fog is on Earth adn clouds the view.
Compare your answer with the correct one above
Besides the Sun, all other stars appear to be pin-pricks of light. Why do the other stars appear so small?
Besides the Sun, all other stars appear to be pin-pricks of light. Why do the other stars appear so small?
NASA provides some background on the Sun compared to other stars, "Of course, the star that appears the brightest to all of us on Earth is the Sun. Although it is a rather typical star, not all that different from many of the ones you see at night, we live so close to it that it outshines everything else. Even the next closest star is more than a quarter of a million times farther from Earth, so it is not surprising that the light from the Sun overwhelms that from other stars." Due to the Earth's close (in relative terms) proximity to the Sun, it appears brightest to use because it is closer than all other stars in the galaxy.
NASA provides some background on the Sun compared to other stars, "Of course, the star that appears the brightest to all of us on Earth is the Sun. Although it is a rather typical star, not all that different from many of the ones you see at night, we live so close to it that it outshines everything else. Even the next closest star is more than a quarter of a million times farther from Earth, so it is not surprising that the light from the Sun overwhelms that from other stars." Due to the Earth's close (in relative terms) proximity to the Sun, it appears brightest to use because it is closer than all other stars in the galaxy.
Compare your answer with the correct one above
Which statement about the Sun is correct?
Which statement about the Sun is correct?
NASA provides some background on the Sun compared to other stars, "Of course, the star that appears the brightest to all of us on Earth is the Sun. Although it is a rather typical star, not all that different from many of the ones you see at night, we live so close to it that it outshines everything else. Even the next closest star is more than a quarter of a million times farther from Earth, so it is not surprising that the light from the Sun overwhelms that from other stars." Due to the Earth's close (in relative terms) proximity to the Sun, it appears brightest to use because it is closer than all other stars in the galaxy.
NASA provides some background on the Sun compared to other stars, "Of course, the star that appears the brightest to all of us on Earth is the Sun. Although it is a rather typical star, not all that different from many of the ones you see at night, we live so close to it that it outshines everything else. Even the next closest star is more than a quarter of a million times farther from Earth, so it is not surprising that the light from the Sun overwhelms that from other stars." Due to the Earth's close (in relative terms) proximity to the Sun, it appears brightest to use because it is closer than all other stars in the galaxy.
Compare your answer with the correct one above
True or False: All of the stars we see in the night sky are part of our solar system.
True or False: All of the stars we see in the night sky are part of our solar system.
NASA provides some background on the Sun compared to other stars, "Of course, the star that appears the brightest to all of us on Earth is the Sun. Although it is a rather typical star, not all that different from many of the ones you see at night, we live so close to it that it outshines everything else. Even the next closest star is more than a quarter of a million times farther from Earth, so it is not surprising that the light from the Sun overwhelms that from other stars." Due to the Earth's close (in relative terms) proximity to the Sun, it appears brightest to use because it is closer than all other stars in the galaxy.
The stars that we see in the night sky are part of our Milky Way Galaxy, but they are not part of our solar system. Our solar system only has one star, the Sun. Galaxies contain millions to billions of stars, and depending on their proximity to Earth, some appear brighter than others. They are extremely far from us and not a part of our solar system.
NASA provides some background on the Sun compared to other stars, "Of course, the star that appears the brightest to all of us on Earth is the Sun. Although it is a rather typical star, not all that different from many of the ones you see at night, we live so close to it that it outshines everything else. Even the next closest star is more than a quarter of a million times farther from Earth, so it is not surprising that the light from the Sun overwhelms that from other stars." Due to the Earth's close (in relative terms) proximity to the Sun, it appears brightest to use because it is closer than all other stars in the galaxy.
The stars that we see in the night sky are part of our Milky Way Galaxy, but they are not part of our solar system. Our solar system only has one star, the Sun. Galaxies contain millions to billions of stars, and depending on their proximity to Earth, some appear brighter than others. They are extremely far from us and not a part of our solar system.
Compare your answer with the correct one above
True or False: The Sun is the largest, hottest, and brightest star in our solar system.
True or False: The Sun is the largest, hottest, and brightest star in our solar system.
NASA provides some background on the Sun compared to other stars, "Of course, the star that appears the brightest to all of us on Earth is the Sun. Although it is a rather typical star, not all that different from many of the ones you see at night, we live so close to it that it outshines everything else. Even the next closest star is more than a quarter of a million times farther from Earth, so it is not surprising that the light from the Sun overwhelms that from other stars." Due to the Earth's close (in relative terms) proximity to the Sun, it appears brightest to use because it is closer than all other stars in the galaxy.
The Sun is the only star in our solar system, so that fact makes the statement true. The Sun is the most massive, hottest, and brightest star in our solar system. There are millions if not billions of stars in our galaxy, and the Sun is not the hottest or largest in comparison, but in our solar system, it is!
NASA provides some background on the Sun compared to other stars, "Of course, the star that appears the brightest to all of us on Earth is the Sun. Although it is a rather typical star, not all that different from many of the ones you see at night, we live so close to it that it outshines everything else. Even the next closest star is more than a quarter of a million times farther from Earth, so it is not surprising that the light from the Sun overwhelms that from other stars." Due to the Earth's close (in relative terms) proximity to the Sun, it appears brightest to use because it is closer than all other stars in the galaxy.
The Sun is the only star in our solar system, so that fact makes the statement true. The Sun is the most massive, hottest, and brightest star in our solar system. There are millions if not billions of stars in our galaxy, and the Sun is not the hottest or largest in comparison, but in our solar system, it is!
Compare your answer with the correct one above
Why do many students believe that the Sun is the largest or brightest star?
Why do many students believe that the Sun is the largest or brightest star?
NASA provides some background on the Sun compared to other stars, "Of course, the star that appears the brightest to all of us on Earth is the Sun. Although it is a rather typical star, not all that different from many of the ones you see at night, we live so close to it that it outshines everything else. Even the next closest star is more than a quarter of a million times farther from Earth, so it is not surprising that the light from the Sun overwhelms that from other stars." Due to the Earth's close (in relative terms) proximity to the Sun, it appears brightest to use because it is closer than all other stars in the galaxy.
There are millions if not billions of stars in our galaxy, and the Sun is not the hottest or largest in comparison, but in our solar system, it is! Many students have the misconception that because our star is the brightest that we can see, it must be the largest, hottest, and brightest of all stars. This is untrue. It only appears to be the brightest because of its proximity to Earth.
NASA provides some background on the Sun compared to other stars, "Of course, the star that appears the brightest to all of us on Earth is the Sun. Although it is a rather typical star, not all that different from many of the ones you see at night, we live so close to it that it outshines everything else. Even the next closest star is more than a quarter of a million times farther from Earth, so it is not surprising that the light from the Sun overwhelms that from other stars." Due to the Earth's close (in relative terms) proximity to the Sun, it appears brightest to use because it is closer than all other stars in the galaxy.
There are millions if not billions of stars in our galaxy, and the Sun is not the hottest or largest in comparison, but in our solar system, it is! Many students have the misconception that because our star is the brightest that we can see, it must be the largest, hottest, and brightest of all stars. This is untrue. It only appears to be the brightest because of its proximity to Earth.
Compare your answer with the correct one above
According to the United States Geological Survey, “About 71 percent of the Earth’s surface is water-covered, and the oceans hold about 96.5 percent of all Earth’s water. Water also exists in the air as water vapor, in rivers and lakes, in icecaps and glaciers, in the ground as soil moisture and in aquifers, and even in you and your dog. The vast majority of water on the Earth’s surface, over 96 percent, is saline water in the oceans. The freshwater resources, such as water falling from the skies and moving into streams, rivers, lakes, and groundwater, provide people with the water they need every day to live. Even though you may only notice water on the Earth’s surface, there is much more freshwater stored in the ground than there is in liquid form on the surface. Some of the water you see flowing in rivers comes from the seepage of groundwater into river beds. Water from precipitation continually seeps into the ground to recharge aquifers, while at the same time, water in the ground continually recharges rivers through seepage. Water is never sitting still. Thanks to the water cycle, our planet’s water supply is constantly moving from one place to another and from one form to another.” Overall there are said to be 326 million trillion gallons of water on Earth, and only 3% is fresh water.
Which answer choice best describes the amounts of water on Earth?
According to the United States Geological Survey, “About 71 percent of the Earth’s surface is water-covered, and the oceans hold about 96.5 percent of all Earth’s water. Water also exists in the air as water vapor, in rivers and lakes, in icecaps and glaciers, in the ground as soil moisture and in aquifers, and even in you and your dog. The vast majority of water on the Earth’s surface, over 96 percent, is saline water in the oceans. The freshwater resources, such as water falling from the skies and moving into streams, rivers, lakes, and groundwater, provide people with the water they need every day to live. Even though you may only notice water on the Earth’s surface, there is much more freshwater stored in the ground than there is in liquid form on the surface. Some of the water you see flowing in rivers comes from the seepage of groundwater into river beds. Water from precipitation continually seeps into the ground to recharge aquifers, while at the same time, water in the ground continually recharges rivers through seepage. Water is never sitting still. Thanks to the water cycle, our planet’s water supply is constantly moving from one place to another and from one form to another.” Overall there are said to be 326 million trillion gallons of water on Earth, and only 3% is fresh water.
Which answer choice best describes the amounts of water on Earth?
There are said to be 326 million trillion gallons of water on Earth, and a majority of that water (about 97%) is saltwater. This water can be found in seas and oceans. Freshwater only makes up about 3% of the water on Earth and can be found in the air as water vapor, in rivers and lakes, in icecaps and glaciers, in the ground as soil moisture and in aquifers.
There are said to be 326 million trillion gallons of water on Earth, and a majority of that water (about 97%) is saltwater. This water can be found in seas and oceans. Freshwater only makes up about 3% of the water on Earth and can be found in the air as water vapor, in rivers and lakes, in icecaps and glaciers, in the ground as soil moisture and in aquifers.
Compare your answer with the correct one above
Where is the majority of water on Earth found?
Where is the majority of water on Earth found?
According to the United States Geological Survey, "About 71 percent of the Earth's surface is water-covered, and the oceans hold about 96.5 percent of all Earth's water. Water also exists in the air as water vapor, in rivers and lakes, in icecaps and glaciers, in the ground as soil moisture and in aquifers, and even in you and your dog. The vast majority of water on the Earth's surface, over 96 percent, is saline water in the oceans. The freshwater resources, such as water falling from the skies and moving into streams, rivers, lakes, and groundwater, provide people with the water they need every day to live. Even though you may only notice water on the Earth's surface, there is much more freshwater stored in the ground than there is in liquid form on the surface. Some of the water you see flowing in rivers comes from the seepage of groundwater into river beds. Water from precipitation continually seeps into the ground to recharge aquifers, while at the same time, water in the ground continually recharges rivers through seepage. Water is never sitting still. Thanks to the water cycle, our planet's water supply is constantly moving from one place to another and from one form to another." Overall there are said to be 326 million trillion gallons of water on Earth, and only 3% is fresh water.
Based on this information and the photo, it can be determined that the surface of the Earth is mostly covered by saltwater from the oceans. So that is where most of the water on Earth is found.
According to the United States Geological Survey, "About 71 percent of the Earth's surface is water-covered, and the oceans hold about 96.5 percent of all Earth's water. Water also exists in the air as water vapor, in rivers and lakes, in icecaps and glaciers, in the ground as soil moisture and in aquifers, and even in you and your dog. The vast majority of water on the Earth's surface, over 96 percent, is saline water in the oceans. The freshwater resources, such as water falling from the skies and moving into streams, rivers, lakes, and groundwater, provide people with the water they need every day to live. Even though you may only notice water on the Earth's surface, there is much more freshwater stored in the ground than there is in liquid form on the surface. Some of the water you see flowing in rivers comes from the seepage of groundwater into river beds. Water from precipitation continually seeps into the ground to recharge aquifers, while at the same time, water in the ground continually recharges rivers through seepage. Water is never sitting still. Thanks to the water cycle, our planet's water supply is constantly moving from one place to another and from one form to another." Overall there are said to be 326 million trillion gallons of water on Earth, and only 3% is fresh water.
Based on this information and the photo, it can be determined that the surface of the Earth is mostly covered by saltwater from the oceans. So that is where most of the water on Earth is found.
Compare your answer with the correct one above
About 71% of Earth's surface is covered by water and of that 97% is saltwater located in oceans. The water in the ocean only contains about three to four percent salt. If you wanted to replicate this at home, you could mix six ounces of water with a teaspoon of salt, and it would be the same salinity as ocean water. Oceans become saltier over time as water evaporates, and small amounts of salt are carried to the oceans by rivers.
Select which statement is true.
About 71% of Earth's surface is covered by water and of that 97% is saltwater located in oceans. The water in the ocean only contains about three to four percent salt. If you wanted to replicate this at home, you could mix six ounces of water with a teaspoon of salt, and it would be the same salinity as ocean water. Oceans become saltier over time as water evaporates, and small amounts of salt are carried to the oceans by rivers.
Select which statement is true.
These statements all take pieces or parts out of the passage to appear as accurate text evidence, but only one answer choice is correct in all ways. 97% of the water on Earth is comprised of saltwater is a true statement. The surface of the Earth is mostly covered by saltwater from the oceans. Only 3% of Earth's water is freshwater and can be found in rivers, lakes, aquifers, ponds, etc..
These statements all take pieces or parts out of the passage to appear as accurate text evidence, but only one answer choice is correct in all ways. 97% of the water on Earth is comprised of saltwater is a true statement. The surface of the Earth is mostly covered by saltwater from the oceans. Only 3% of Earth's water is freshwater and can be found in rivers, lakes, aquifers, ponds, etc..
Compare your answer with the correct one above
One-third of Earth's freshwater is located underground. This is less than the amount found in glaciers but more than the amount found in lakes and rivers.
Which source of freshwater has the smallest quantity of water?
One-third of Earth's freshwater is located underground. This is less than the amount found in glaciers but more than the amount found in lakes and rivers.
Which source of freshwater has the smallest quantity of water?
Glaciers are large chunks of ice found in very cold places like the North and South Poles. In Antarctica, the ice can be up to three miles thick. Only 3% of the water on Earth is fresh water and is split between many different places (ponds, rivers, lakes, swamps, etc.).
Glaciers are large chunks of ice found in very cold places like the North and South Poles. In Antarctica, the ice can be up to three miles thick. Only 3% of the water on Earth is fresh water and is split between many different places (ponds, rivers, lakes, swamps, etc.).
Compare your answer with the correct one above
A majority of the water on Earth is ________ and ___________.
A majority of the water on Earth is ________ and ___________.
According to the United States Geological Survey, “About 71 percent of the Earth’s surface is water-covered, and the oceans hold about 96.5 percent of all Earth’s water. Water also exists in the air as water vapor, in rivers and lakes, in icecaps and glaciers, in the ground as soil moisture and in aquifers, and even in you and your dog. The vast majority of water on the Earth’s surface, over 96 percent, is saline water in the oceans. The freshwater resources, such as water falling from the skies and moving into streams, rivers, lakes, and groundwater, provide people with the water they need every day to live. Even though you may only notice water on the Earth’s surface, there is much more freshwater stored in the ground than there is in liquid form on the surface. Some of the water you see flowing in rivers comes from the seepage of groundwater into river beds. Water from precipitation continually seeps into the ground to recharge aquifers, while at the same time, water in the ground continually recharges rivers through seepage. Water is never sitting still. Thanks to the water cycle, our planet’s water supply is constantly moving from one place to another and from one form to another.” Overall there are said to be 326 million trillion gallons of water on Earth, and only 3% is freshwater.
According to the United States Geological Survey, “About 71 percent of the Earth’s surface is water-covered, and the oceans hold about 96.5 percent of all Earth’s water. Water also exists in the air as water vapor, in rivers and lakes, in icecaps and glaciers, in the ground as soil moisture and in aquifers, and even in you and your dog. The vast majority of water on the Earth’s surface, over 96 percent, is saline water in the oceans. The freshwater resources, such as water falling from the skies and moving into streams, rivers, lakes, and groundwater, provide people with the water they need every day to live. Even though you may only notice water on the Earth’s surface, there is much more freshwater stored in the ground than there is in liquid form on the surface. Some of the water you see flowing in rivers comes from the seepage of groundwater into river beds. Water from precipitation continually seeps into the ground to recharge aquifers, while at the same time, water in the ground continually recharges rivers through seepage. Water is never sitting still. Thanks to the water cycle, our planet’s water supply is constantly moving from one place to another and from one form to another.” Overall there are said to be 326 million trillion gallons of water on Earth, and only 3% is freshwater.
Compare your answer with the correct one above
Water covers approximately 71% of the Earth's surface in oceans, lakes, and rivers. Water moves into the oceans from rivers and streams. What is the term for the process of water moving out of the ocean?
Water covers approximately 71% of the Earth's surface in oceans, lakes, and rivers. Water moves into the oceans from rivers and streams. What is the term for the process of water moving out of the ocean?
The stage in the water cycle where water is heated by the Sun and turns to vapor is evaporation. The water absorbs heat from the Sun's rays and slowly releases it into the atmosphere. Water changes from a liquid state to a gaseous state (vapor) and returns to the atmosphere. The oceans of Earth are the largest collection of water so therefore the most evaporation and precipitation take place over the ocean. Water moves out of the oceans during the process of evaporation.
The stage in the water cycle where water is heated by the Sun and turns to vapor is evaporation. The water absorbs heat from the Sun's rays and slowly releases it into the atmosphere. Water changes from a liquid state to a gaseous state (vapor) and returns to the atmosphere. The oceans of Earth are the largest collection of water so therefore the most evaporation and precipitation take place over the ocean. Water moves out of the oceans during the process of evaporation.
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Which stages of the water cycle add water directly to the oceans?
Which stages of the water cycle add water directly to the oceans?
The stage in the water cycle that returns water to Earth is precipitation. Depending on the weather conditions, the temperature on the Earth’s surface and in the atmosphere, and the topography of the land will determine the amount and type of precipitation. Precipitation forms when the droplets in the clouds are too heavy and fall back to Earth. Rain will fall when both the atmosphere and surface temperatures are above freezing. Hail will form when there is a thunderstorm, the temperature in the atmosphere is below freezing, and the surface temperature is above freezing. Snow forms when the temperature is below freezing in the atmosphere and on the surface of Earth. Finally, sleet is formed when the temperature in the atmosphere is above freezing, and the surface temperature is below freezing. These types of precipitation can fall over an ocean and return the water that was previously evaporated.
Runoff is another stage in the water cycle where water is directly added to the oceans. Runoff occurs when water flows downwards due to gravity from the top of landforms such as mountains. It can be in the form of a stream or river, for example. The water returns to the ocean when the mouth of the creek or river intersects with the sea. Runoff also adds to our groundwater supplies as it soaks into the ground and aquifers.
The stage in the water cycle that returns water to Earth is precipitation. Depending on the weather conditions, the temperature on the Earth’s surface and in the atmosphere, and the topography of the land will determine the amount and type of precipitation. Precipitation forms when the droplets in the clouds are too heavy and fall back to Earth. Rain will fall when both the atmosphere and surface temperatures are above freezing. Hail will form when there is a thunderstorm, the temperature in the atmosphere is below freezing, and the surface temperature is above freezing. Snow forms when the temperature is below freezing in the atmosphere and on the surface of Earth. Finally, sleet is formed when the temperature in the atmosphere is above freezing, and the surface temperature is below freezing. These types of precipitation can fall over an ocean and return the water that was previously evaporated.
Runoff is another stage in the water cycle where water is directly added to the oceans. Runoff occurs when water flows downwards due to gravity from the top of landforms such as mountains. It can be in the form of a stream or river, for example. The water returns to the ocean when the mouth of the creek or river intersects with the sea. Runoff also adds to our groundwater supplies as it soaks into the ground and aquifers.
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Where does most of Earth's precipitation and evaporation occur?
Where does most of Earth's precipitation and evaporation occur?
The stage in the water cycle where water is heated by the Sun and turns to vapor is evaporation. The water absorbs heat from the Sun's rays and slowly releases it into the atmosphere. Water changes from a liquid state to a gaseous state (vapor) and returns to the atmosphere.
The stage in the water cycle that returns water to Earth is precipitation. Depending on the weather conditions, the temperature on the Earth's surface and in the atmosphere, and the topography of the land will determine the amount and type of precipitation. Precipitation forms when the droplets in the clouds are too heavy and fall back to Earth. Rain will fall when both the atmosphere and surface temperatures are above freezing. Hail will form when there is a thunderstorm, the temperature in the atmosphere is below freezing, and the surface temperature is above freezing. Snow forms when the temperature is below freezing in the atmosphere and on the surface of Earth. Finally, sleet is formed when the temperature in the atmosphere is above freezing, and the surface temperature is below freezing.
These two processes take place most frequently over the Earth's oceans because they are the largest bodies of water on Earth. Nearly 71% of the Earth's surface is covered with water, and 96% of that water is saltwater.
The stage in the water cycle where water is heated by the Sun and turns to vapor is evaporation. The water absorbs heat from the Sun's rays and slowly releases it into the atmosphere. Water changes from a liquid state to a gaseous state (vapor) and returns to the atmosphere.
The stage in the water cycle that returns water to Earth is precipitation. Depending on the weather conditions, the temperature on the Earth's surface and in the atmosphere, and the topography of the land will determine the amount and type of precipitation. Precipitation forms when the droplets in the clouds are too heavy and fall back to Earth. Rain will fall when both the atmosphere and surface temperatures are above freezing. Hail will form when there is a thunderstorm, the temperature in the atmosphere is below freezing, and the surface temperature is above freezing. Snow forms when the temperature is below freezing in the atmosphere and on the surface of Earth. Finally, sleet is formed when the temperature in the atmosphere is above freezing, and the surface temperature is below freezing.
These two processes take place most frequently over the Earth's oceans because they are the largest bodies of water on Earth. Nearly 71% of the Earth's surface is covered with water, and 96% of that water is saltwater.
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True or False: Oceans of freshwater cover much of Earth’s surface. Freshwater is water that contains little or no salt. Most of Earth’s saltwater is frozen in ice caps and glaciers.
True or False: Oceans of freshwater cover much of Earth’s surface. Freshwater is water that contains little or no salt. Most of Earth’s saltwater is frozen in ice caps and glaciers.
The statement "Oceans of freshwater cover much of Earth's surface. Freshwater is water that contains little or no salt. Most of Earth's saltwater is frozen in ice caps and glaciers." is false. To make this statement true, it should be edited to say, "Oceans of saltwater cover much of Earth's surface. Freshwater is water that contains little or no salt. Most of Earth's freshwater is frozen in ice caps and glaciers." There are 326 million trillion gallons of water on Earth, and a majority of that water (about 97%) is saltwater. This water can be found in seas and oceans. Freshwater only makes up about 3% of the water on Earth and can be found in the air as water vapor, in rivers and lakes, in icecaps and glaciers, in the ground as soil moisture, and in aquifers.
The statement "Oceans of freshwater cover much of Earth's surface. Freshwater is water that contains little or no salt. Most of Earth's saltwater is frozen in ice caps and glaciers." is false. To make this statement true, it should be edited to say, "Oceans of saltwater cover much of Earth's surface. Freshwater is water that contains little or no salt. Most of Earth's freshwater is frozen in ice caps and glaciers." There are 326 million trillion gallons of water on Earth, and a majority of that water (about 97%) is saltwater. This water can be found in seas and oceans. Freshwater only makes up about 3% of the water on Earth and can be found in the air as water vapor, in rivers and lakes, in icecaps and glaciers, in the ground as soil moisture, and in aquifers.
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True or False: The total amount of water on Earth does not change.
True or False: The total amount of water on Earth does not change.
The statement "The total amount of water on Earth does not change." is true. All of Earth's water is recycled through the water cycle. When water evaporates, it is not gone; it is just in vapor (gaseous) form that is unseen until it condenses. Water animals drink returned to the Earth through their excretory systems; precipitation replenishes rain that has condensed and evaporated. The same water on Earth today was around when dinosaurs roamed because it is all recycled.
The statement "The total amount of water on Earth does not change." is true. All of Earth's water is recycled through the water cycle. When water evaporates, it is not gone; it is just in vapor (gaseous) form that is unseen until it condenses. Water animals drink returned to the Earth through their excretory systems; precipitation replenishes rain that has condensed and evaporated. The same water on Earth today was around when dinosaurs roamed because it is all recycled.
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