Physical Science - 1st Grade Science
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Which of the following objects provides evidence that humans can make light sources?
Which of the following objects provides evidence that humans can make light sources?
A flashlight is a human-made object, so this gives us evidence or proof that humans can make light sources. The Sun and lightning are both natural sources of light, so nature, not humans, created them.
A flashlight is a human-made object, so this gives us evidence or proof that humans can make light sources. The Sun and lightning are both natural sources of light, so nature, not humans, created them.
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Construct an evidence-based claim to answer the question below.
What illuminates this birthday cake?
Construct an evidence-based claim to answer the question below.
What illuminates this birthday cake?
The candles on the top illuminate this cake. From the picture, we can observe that the only source of light is coming from the candles, and without them, it would be dark. The background of the picture is dark, so there are no other sources of light.
The candles on the top illuminate this cake. From the picture, we can observe that the only source of light is coming from the candles, and without them, it would be dark. The background of the picture is dark, so there are no other sources of light.
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Tina took a flashlight with her and explored a dark cave. She couldn't see anything but heard strange noises. Once the cave was illuminated with the flashlight, she saw there were tons of snakes! The flashlight went out, and it was dark again. She ran towards the light at the entrance of the cave and went home.
Which two sentences provide evidence that a light source is needed to see in darkness?
Tina took a flashlight with her and explored a dark cave. She couldn't see anything but heard strange noises. Once the cave was illuminated with the flashlight, she saw there were tons of snakes! The flashlight went out, and it was dark again. She ran towards the light at the entrance of the cave and went home.
Which two sentences provide evidence that a light source is needed to see in darkness?
The sentences that provide evidence of a light source are necessary are, "Once the cave was illuminated with the flashlight, she saw there were tons of snakes! The flashlight went out, and it was dark again.". These sentences explain that once the flashlight illuminated or light up the cave, she could see the snakes. It also states that it went dark again when the flashlight went out. This shows readers that the flashlight is where the light came from and was needed to see in the darkness.
The sentences that provide evidence of a light source are necessary are, "Once the cave was illuminated with the flashlight, she saw there were tons of snakes! The flashlight went out, and it was dark again.". These sentences explain that once the flashlight illuminated or light up the cave, she could see the snakes. It also states that it went dark again when the flashlight went out. This shows readers that the flashlight is where the light came from and was needed to see in the darkness.
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Kelly wants to look for bugs that only come out at night. She looks around and finds an old lantern to bring with her. When she gets outside, it is so dark she can't even see her feet! She turns on the lantern and can see all the bugs crawling on the roots of a tree. She records what she sees and goes inside.
Which two sentences provide evidence that light is needed to see things in the dark?
Kelly wants to look for bugs that only come out at night. She looks around and finds an old lantern to bring with her. When she gets outside, it is so dark she can't even see her feet! She turns on the lantern and can see all the bugs crawling on the roots of a tree. She records what she sees and goes inside.
Which two sentences provide evidence that light is needed to see things in the dark?
Providing evidence is like giving proof of something or for something. In this short passage, two sentences show us how light is needed to illuminate and see objects in the dark. "When she gets outside, it is so dark she can't even see her feet! She turns on the lantern and can see all the bugs crawling on the roots of a tree." The first sentence lets us know it is dark, and she cannot see anything, not even her feet. In the second sentence, she illuminates the area around her with the lantern so she can see the bugs and roots. These sentences show that light is necessary to see.
Providing evidence is like giving proof of something or for something. In this short passage, two sentences show us how light is needed to illuminate and see objects in the dark. "When she gets outside, it is so dark she can't even see her feet! She turns on the lantern and can see all the bugs crawling on the roots of a tree." The first sentence lets us know it is dark, and she cannot see anything, not even her feet. In the second sentence, she illuminates the area around her with the lantern so she can see the bugs and roots. These sentences show that light is necessary to see.
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Andrew was trying to look down the end of a very long sidewalk to see if his friend was coming, but it was too dark to see. He ran back home and looked for something to bring with him to help him see. Which item should he grab and why?
Andrew was trying to look down the end of a very long sidewalk to see if his friend was coming, but it was too dark to see. He ran back home and looked for something to bring with him to help him see. Which item should he grab and why?
Andrew should choose the flashlight if he wants to get an item to help him see. A lightbulb will not work without electricity, so holding it up outside will do nothing. A candle will give off light to reflect off objects but only for a short distance, and he is on the end of a very long sidewalk. A flashlight would help him see the long-distance that is needed. It will reflect light off of the objects in the dark so he can see what is around him and if his friend is coming.
Andrew should choose the flashlight if he wants to get an item to help him see. A lightbulb will not work without electricity, so holding it up outside will do nothing. A candle will give off light to reflect off objects but only for a short distance, and he is on the end of a very long sidewalk. A flashlight would help him see the long-distance that is needed. It will reflect light off of the objects in the dark so he can see what is around him and if his friend is coming.
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Which statement best explains why fireworks help us to see at night?
Which statement best explains why fireworks help us to see at night?
Humans can only see objects when they are illuminated by something that gives off or produces light. Fireworks do both of these things, so they help to light up the night sky and other objects around them. While waiting for a firework show, you may notice it is dark and hard to see the people around you; when the fireworks explode, you can see the people around you more clearly.
Humans can only see objects when they are illuminated by something that gives off or produces light. Fireworks do both of these things, so they help to light up the night sky and other objects around them. While waiting for a firework show, you may notice it is dark and hard to see the people around you; when the fireworks explode, you can see the people around you more clearly.
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I am only able to see in the dark when I have a light to help me. I can use a flashlight, candle, or turn on a lightbulb.
I am only able to see in the dark when I have a light to help me. I can use a flashlight, candle, or turn on a lightbulb.
This is a true statement. Humans have limited vision in the darkness; we need a light to help us. All of the items listed would be helpful in the dark. This claim is based in fact.
This is a true statement. Humans have limited vision in the darkness; we need a light to help us. All of the items listed would be helpful in the dark. This claim is based in fact.
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Natalie could not see into the dark closet because she wasn't trying hard enough. If she wanted to see in the dark, I think she just needs to practice.
Is this statement based on evidence, or is it an opinion? How do you know?
Natalie could not see into the dark closet because she wasn't trying hard enough. If she wanted to see in the dark, I think she just needs to practice.
Is this statement based on evidence, or is it an opinion? How do you know?
This statement is based on an opinion. The phrasing "I think" is a big clue that this is not an evidence-based account. If it were, there would be facts, data, observations, and no personal thoughts.
This statement is based on an opinion. The phrasing "I think" is a big clue that this is not an evidence-based account. If it were, there would be facts, data, observations, and no personal thoughts.
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Illumination is necessary to see objects in the dark. I tested this by looking into a dark room with no lights and a dark room with different light sources (candles, flashlights, and lanterns). When I used a light source, I could see what was in the room. When I did not use a light source, I could not see.
Is this statement evidence-based, or is it an opinion? How do you know?
Illumination is necessary to see objects in the dark. I tested this by looking into a dark room with no lights and a dark room with different light sources (candles, flashlights, and lanterns). When I used a light source, I could see what was in the room. When I did not use a light source, I could not see.
Is this statement evidence-based, or is it an opinion? How do you know?
This statement is evidence-based. The author includes information about testing their theory with different light sources and used a scientific process to do the tests. There is no mention of personal thoughts or opinions.
This statement is evidence-based. The author includes information about testing their theory with different light sources and used a scientific process to do the tests. There is no mention of personal thoughts or opinions.
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To see objects in the dark, I must use a light source to illuminate it. I know this because I performed a set of investigations and collected data. The data showed that when I went into a dark room, and my brother held up a toy, I could not see what it was. When I used a flashlight, I could see the toy.
Is this statement evidence-based, or is it an opinion? How do you know?
To see objects in the dark, I must use a light source to illuminate it. I know this because I performed a set of investigations and collected data. The data showed that when I went into a dark room, and my brother held up a toy, I could not see what it was. When I used a flashlight, I could see the toy.
Is this statement evidence-based, or is it an opinion? How do you know?
This is an evidence-bassed statement because there is no personal opinion mentioned, and the writer collected data to conclude. Using data is a form of evidence that helps support a conclusion.
This is an evidence-bassed statement because there is no personal opinion mentioned, and the writer collected data to conclude. Using data is a form of evidence that helps support a conclusion.
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Jeanette was asked to design a device using light that would help keep people safe. Which successful, existing object should she research and model her design after?
Jeanette was asked to design a device using light that would help keep people safe. Which successful, existing object should she research and model her design after?
Jeanette should use the traffic light as a model for her design. It is a successful device that uses lights to keep people safe and could be a good way for her to come up with ideas for her design.
Jeanette should use the traffic light as a model for her design. It is a successful device that uses lights to keep people safe and could be a good way for her to come up with ideas for her design.
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Fireflies use their lighted bellies to communicate with other insects. Shelby has to create a device using light to communicate. Which object would be best to start with?
Fireflies use their lighted bellies to communicate with other insects. Shelby has to create a device using light to communicate. Which object would be best to start with?
The best object to start with if designing a device that uses light for communication would be the flashlight. The flashlight can be seen long distances, turned on and off, and can be flashed to send messages. A radio is excellent for communicating with sound but not light, and a mirror reflects light, but it doesn't make it's own light if you needed to communicate at night.
The best object to start with if designing a device that uses light for communication would be the flashlight. The flashlight can be seen long distances, turned on and off, and can be flashed to send messages. A radio is excellent for communicating with sound but not light, and a mirror reflects light, but it doesn't make it's own light if you needed to communicate at night.
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A new restaurant, "Yummy Tacos", is opening and wants to attract new customers. They have asked you to design a device that will say the restaurant's name over a distance using light. Which answer choice has the best design plan?
A new restaurant, "Yummy Tacos", is opening and wants to attract new customers. They have asked you to design a device that will say the restaurant's name over a distance using light. Which answer choice has the best design plan?
The best design plant would be "A bright sign that lights up from the inside and says "Yummy Tacos" in big, bold letters" because it would meet the design requirements. It would attract customers, be easy to see, uses light, and can be seen from a distance. Stores and restaurants use light to attract customers with their street signs, open signs, and colorful decorative lights.
The best design plant would be "A bright sign that lights up from the inside and says "Yummy Tacos" in big, bold letters" because it would meet the design requirements. It would attract customers, be easy to see, uses light, and can be seen from a distance. Stores and restaurants use light to attract customers with their street signs, open signs, and colorful decorative lights.
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How could you improve the design of the lights in this photo to help the plane land safely?
How could you improve the design of the lights in this photo to help the plane land safely?
The lights on the runway are intended to communicate where the safe place is for the plane to land. If it were to be improved, there could be more lights, brighter lights, and they could be added to both sides. Planes landing at night rely on these lights to get passengers to the ground safely. Part of the design process is making improvements on existing devices.
The lights on the runway are intended to communicate where the safe place is for the plane to land. If it were to be improved, there could be more lights, brighter lights, and they could be added to both sides. Planes landing at night rely on these lights to get passengers to the ground safely. Part of the design process is making improvements on existing devices.
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What is an example of an everyday light source that sends a message?
What is an example of an everyday light source that sends a message?
Both crosswalk screens and elevator buttons use light to send us a message. We can tell if the elevator is going up or down based on the lights, if the button for our floor has been pressed, or if the elevator is stuck based on the lights. A crosswalk will show us a hand or a walking figure when we need to stop or if it is safe to cross. It will also count down, so we know how long we have.
Both crosswalk screens and elevator buttons use light to send us a message. We can tell if the elevator is going up or down based on the lights, if the button for our floor has been pressed, or if the elevator is stuck based on the lights. A crosswalk will show us a hand or a walking figure when we need to stop or if it is safe to cross. It will also count down, so we know how long we have.
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A lighthouse was designed to help sailors at sea. It tells them where the land is so they can keep their boats away from the rocks and shore.
What is a similar device that has been designed using light to communicate over a distance?
A lighthouse was designed to help sailors at sea. It tells them where the land is so they can keep their boats away from the rocks and shore.
What is a similar device that has been designed using light to communicate over a distance?
Waving a flashlight at night is a similar device to the lighthouse shining out to sea at night. Planes land in the dark and need to see the runway edges so they can line the plane up. Workers who wave the flashlights help keep the passengers and crew safe by letting the plane know where to land.
Waving a flashlight at night is a similar device to the lighthouse shining out to sea at night. Planes land in the dark and need to see the runway edges so they can line the plane up. Workers who wave the flashlights help keep the passengers and crew safe by letting the plane know where to land.
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A light wave can be used to send messages.
A light wave can be used to send messages.
This is a true statement. Light is used to communicate and send messages every day. Everyday crosswalk signs, lighthouses, traffic lights, and so many more help to send messages to people all around. Light is made of waves, and we can use these waves to keep people safe and pass information.
This is a true statement. Light is used to communicate and send messages every day. Everyday crosswalk signs, lighthouses, traffic lights, and so many more help to send messages to people all around. Light is made of waves, and we can use these waves to keep people safe and pass information.
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How could your teacher use a device like the traffic light in the classroom to help you with your work?
How could your teacher use a device like the traffic light in the classroom to help you with your work?
The traffic light's purpose is to keep us safe and help drivers know when to go, slow down, or stop. You or your teacher could design a similar device to use in the classroom. The teacher could shine a red light to stop working, a green light to start working, and a yellow light for time is almost up. This would communicate the messages a teacher might share with light rather than sound.
The traffic light's purpose is to keep us safe and help drivers know when to go, slow down, or stop. You or your teacher could design a similar device to use in the classroom. The teacher could shine a red light to stop working, a green light to start working, and a yellow light for time is almost up. This would communicate the messages a teacher might share with light rather than sound.
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Aly's teacher posts letters and words all over the room and she gives each student a laser pointer. She tells them she wants them to spell their name or pass a message to her without talking. What can the students do to communicate with only light?
Aly's teacher posts letters and words all over the room and she gives each student a laser pointer. She tells them she wants them to spell their name or pass a message to her without talking. What can the students do to communicate with only light?
This is an excellent example of how light can be used to communicate messages! Aly can use her laser pointer like a finger and point at the letters to spell her name or words to send the class a message. Without using sound, Aly can communicate to her teacher what she is thinking with this simple device!
This is an excellent example of how light can be used to communicate messages! Aly can use her laser pointer like a finger and point at the letters to spell her name or words to send the class a message. Without using sound, Aly can communicate to her teacher what she is thinking with this simple device!
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Morse code uses clicks and flashes of light to send coded messages. You want to create a secret language with your brother. How could you use a device like a simple lamp to pass messages and communicate secretly?
Morse code uses clicks and flashes of light to send coded messages. You want to create a secret language with your brother. How could you use a device like a simple lamp to pass messages and communicate secretly?
You and your brother could come up with a secret code to communicate using a device like a lamp. Two clicks could mean no, one-click yes, and so on until you have a whole language. Messages are passed with light every day, thus creating your device to communicate is something that anyone can design.
You and your brother could come up with a secret code to communicate using a device like a lamp. Two clicks could mean no, one-click yes, and so on until you have a whole language. Messages are passed with light every day, thus creating your device to communicate is something that anyone can design.
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