1. Unit 1 Vocab Earth Science Unit

2. Compaction
Sedimentary rock-forming process that occurs when small layers of small sediments become packed down by the weight of layers above them

3. Crystal
Solid, made up of molecules arranged in a regular and repeating pattern

4. deposition
Process which wind, water and gravity leave eroded sediments in new locations

5. Movement of sediment by wind, water, ice or gravity
erosion
Movement of sediment by wind, water, ice or gravity

6. glacier
Large mass of ice and snow that exists year-round and is involved in erosion

7. One of the 3 main kinds of rock made from cooled magma
igneous
One of the 3 main kinds of rock made from cooled magma

8. metamorphic
Rock changes over time by high pressures and temperature’s inside the Earth’s crust

9. Process rocks change into different kinds of rock over geologic ages
Rock cycle
Process rocks change into different kinds of rock over geologic ages

10. sedimentary
Rock formed when sediment is pressed and cemented together naturally over millions of years

11. sediments
Small pieces of material that have broken off of rocks and have been deposited by wind, water or ice.

12. weathering
Process by which wind, water, and ice wear down rocks and other exposed surfaces; includes chemical and mechanical weathering