1) Weathering is a) when products move around b) breaking down of the Earth's surface. 2) Erosion is a) breaking down of the Earth's surface. b) moving around of weathered products. 3) The breaking down of rocks is a) weathering b) erosion 4) Rocks are broken into pieces by the rain. a) erosion b) weathering 5) The river is moving rocks everywhere. a) erosion b) weathering 6) The ice made a crack in the rock. a) erosion b) weathering 7) Sand is being blown away by the wind a) erosion b) weathering 8) The river carries stones from one place to another a) erosion b) weathering 9) The wind creates sand dunes. a) weathering b) erosion 10) The tree roots caused the rocks to crack. a) erosion b) weathering 11) The water against the rocks made it smooth. a) weathering b) erosion 12) The wind made the pyramids smooth. a) erosion b) weathering 13) Dirt was carried by the river. a) weathering b) erosion 14) The water made the canyon smooth. a) weathering b) erosion 15) Rocks slid down the hill when it rained. a) weathering b) erosion 16) What is in a soil? a) living things only b) living and nonliving things c) rocks and waters only d) non living things only 17) What are some nonliving things? a) plants, soil, rocks b) animals, water, trees c) water, rocks, soil d) animals, soil, rocks 18) An earthworm lives in soil. Why do worms live in soil and not rocks? a) It is more comfortable in soil. b) There is food in soil. c) The worm can move in soil, but they can't move in rocks. d) They live in a house. 19) Do land slides happen fast or slow? a) fast b) slow 20) Does erosion happen fast or slow? a) fast b) slow 21) Does weathering happen fast or slow? a) slow b) fast 22) Fast changes shape Earth's surface. Which is an example of a fast change? a) Wind carves a hold in solid rock. b) A river makes rocks smooth. c) Waves break down rock. d) A wildfire burns a forest. 23) Luis wants to go swimming. How should he stay safe near the water? a) He should play catch near the water. b) He should swim alone. c) He should swim with an adult d) He should run near the pool. 24) Mr. Garcia is making a map of the river. He shows rocks, soil, and plants. What does he need to add to his map? a) buildings b) cars c) water d) air 25) Heavy rains poured onto the mountain. Mud slid down its side. Rocks and trees slid down, too. What fast change is this? a) flood b) landslide c) wildfire d) volcano 26) Slow changes shape Earth's surface. Which is an example of a slow change? a) A wildfire burns a forest. b) Water from heavy rains floods a street. c) Waves break of small pieces of rock. d) Lava flows from a volcano.

Weathering & Erosion

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