Unit 1 and 2 Crossword Puzzle

1. the path one object takes as it revolves around another object in space
6. a sphere of the Earth that means "water"
10. an instrument that shows direction and uses a magnet to show true North (N,E,S,W)
12. a dark area caused when an object blocks light falling on a surface
13. a force that pulls objects, downward, toward the center of Earth
14. a sphere of the Earth that means "ground"
16. the process that occurs when water changes from a liquid to a gas caused by heat
17. the star at the center of our solar system. A medium-sized star
19. the process by which earth's surface is broken down into smaller pieces
21. after the pieces are moved from one place to another, this is their landing place
24. a natural satellite that orbits a planet
26. 97% of the water on Earth falls under this category
27. around 3% of the water on Earth falls into this category

2. the time it takes the Earth to make one complete rotation on its axis (24 hours)
3. the changes to water when it evaporates into air, condenses into clouds, and then precipitates down to Earth
4. the passage of water vapor from a plant to the atmosphere
5. a line, real or imaginary, around which something spins
7. bowl-shaped indents or cavities on the surface of a planet that are caused by a collision with another object
8. the cooling of water in the atmosphere changing a gas to a liquid
9. after pieces of the Earth are broken down, those pieces are moved from one place to another
11. water droplets that fall from the atmosphere
15. an instrument that measures the time of day using the position of the sun
18. a planet in our solar system that has life on it
20. a sphere of the Earth that means "air"
22. a group of stars that form a recognizable pattern
23. a sphere of the Earth that means "life"
25. rainfall that is not absorbed by soil and travels to the ocean