2. Created by Science Teachers Unit 4 Lesson 4-5

3. 100 200 400 300 400 ChangesTimeForcesAgents 300 200 400 200 100 500 100

4. 1,2 Build up of land formations What are constructive forces?

5. Row 1, Col 1 The carrying away of materials from one place to another What is erosion?

6. 1,3 Breakdown of land formations What are destructive forces?

7. 1,4 A natural structure on on the Earth’s surface (ex. mountain, valley, plain, plateau…) What is a landform?

8. 2,1 Deep valleys with steep sides created by rivers What is a canyon?

9. 2,2 An area of land at the mouth of a river where deposits of eroded materials have been built up What is a delta?

10. 2,3 How water continuously moves between the ocean, the sky, and the land What is a water cycle?

11. 2,4 A landform with a steep slope and a high peak What is a mountain?

12. 3,1 An area where sand meets the sea and/or lake What is a beach?

13. 3,2 U and V shaped low areas of land What is a valley?

14. 3,3 High, steep, or overhanging face of rock What is a cliff?

15. 3,4 The breaking down and wearing away of rock material What is weathering?

16. 4,1 A hollow or natural passage under the Earth What is a cave?

17. 4,2 A mountain built up from hardened lava and rock that have erupted out of the Earth What is a volcano?

18. 4,3 Flat land found far above sea level What is a plateau?

19. 4,4 A large body of moving ice What is a glacier?

20. 5,1 Continental drift; Movement of the Earth’s crust What is plate tectonics?

21. 5,2 Melted rock What is magma?

22. 5,3 A wide area of flat land What is a plain?

23. 5,4 Moving air What is wind?