2nd Grade Science › Compare ways to slow wind/water from changing land shape
Which solution would be best and most reasonable for slowing wind and water from changing the shape of the land?
Which factor(s) can change the shape of the land?
Aanya's class is submitting ideas to help stop erosion on a riverbank. The riverbank has houses nearby, and the soil is slipping into the river. There are exposed tree roots, and they seem to be the only thing holding the bank in place.
Which idea of Aanya's seems most reasonable and practical to slow wind and water form changing the shape of the land?
Patricia's teacher announced, "I have made a hill with rocks, sand, and dirt. You are going to get to make "rain" by pouring water down the hill." The students predict that the sand, dirt, and rocks will flow down the hill and break it up. Her teacher gives them a challenge.
What can you build to slow the water from changing the shape of our landform?
What does the term weathering mean? Example: Due to weathering, the house cannot be occupied. The foundation is unstable, and the rocks are loose.
What does the term erosion mean? Example: Due to erosion in the area, the beach is closed. The sand is slipping away and becoming very unstable.
Erika's class is submitting ideas to help stop beach erosion. The beach has large rocks that are exposed, and the sand seems to be washing out to sea, which leaves very little beach behind.
Which idea of Erika's seems most reasonable and practical to slow wind and water form changing the shape of the land?
Liam's teacher announced, "I have made a hill with sand. You are going to get to take a turn making "wind" by blowing into a straw." The students predict that the sand will blow all over the place, breaking up the hill. His teacher gives them a challenge.
What can you build to slow the wind from changing the shape of our landform?
The sides of a river are falling because of the water racing through a narrow section of the river. The town council is trying to decide how they can slow the water down and control it, so the shape of the river doesn't change and cause more problems.
Which solution is the best option?
London was eating a lollipop and noticed how it was getting smaller and smaller, and depending on how he licked it; the shape was even changing.
What is this example similar to in the natural world?