6th Grade

2. naturally occurring, inorganic, solid, crystalline substance which has a fixed structure and a chemical composition
4. located between mars and jupiter
10. material that humans need and value such as land, air, and water
11. the name of our galaxy
12. 78% nitrogen, 21% oxygen, 1% other gases
14. moving air caused by differences in air pressure
16. a large stream of moving water that flows through the ocean
18. process by which one tectonic moves beneath another
21. an object that revolves or orbits around another in space
23. the daily rise and fall of Earth's waters on its coastlines caused by the interaction of the Earth, moon, and sun
24. the central part of the earth below the mantle
25. Overall weather in an area over a long period of time
26. made of combinations of minerals

1. moon phase when the entire side facing Earth is illuminated
3. Shaking and vibration at the surface of the earth resulting from underground movement along a plate boundary or from volcanic activity
5. the distance light travels in a year
6. the movement of water on the surface of the ocean caused by wind
7. A mixture of mineral particles and organic material that covers the land, and in which terrestrial plants grow
8. the amount of water vapor in the air
9. about how long it takes for the moon to orbit earth
13. as seen from earth, objects in the sky rise from this cardinal direction
15. rain, snow, sleet, or hail that falls to the ground
17. type of fuel that includes coal, oil, and natural gas
19. The continuous movement of water on, above, and below the surface of the Earth
20. spherical because of gravity, has cleared out its orbit, and primarily orbits its parent star
22. The condition of Earth's atmosphere at a particular time and place