Across
- 3. Scientists collect a __________ of rock to study its properties.
- 5. Wind and water cause __________, carrying small pieces of rock away.
- 8. Minerals act like glue during __________, sticking sediments together to form rock.
- 11. Rainwater can cause __________ by breaking down rock over time.
- 12. formation The Grand Canyon has many different __________ that tell Earth’s history.
- 14. Tiny pieces of rock, sand, and shells make up __________.
- 15. Each __________ has a unique chemical makeup and crystal structure.
- 17. Layers of sediment build up, and __________ squeezes them tightly together.
Down
- 1. rock Heat and pressure can turn any type of rock into __________.
- 2. The Earth’s crust is broken into large sections called __________.
- 4. One tectonic __________ moves under another in the process of __________.
- 6. rock When lava cools and hardens, it forms __________.
- 7. Rocks, water, and air are all forms of __________ because they take up space.
- 9. Deep inside the Earth, heat melts rock into __________.
- 10. rock Layers of sediment pile up and harden over time to form __________.
- 13. Heat and pressure provide the __________ needed to change rocks deep inside Earth.
- 16. The movement of tectonic plates can cause __________, raising land higher.
