Across
- 4. used to measure waves of an earthquake
- 5. atoms of different elements come together to form ___
- 8. produce red and white blood cells
- 9. a measure of how well material conducts electricity
- 11. in the food chain, grass is a _______
- 14. system that controls voluntary body movement
- 15. plants release H20 into the atmosphere
- 17. attach bones to other bones
- 18. common chemical reaction in plants
- 19. Force = ______ x acceleration
Down
- 1. a bond between atoms that shares electrons
- 2. bacteria, fungi, and worms are considered
- 3. natural satellite
- 6. water goes from solid straight to gas
- 7. mountains form due to ________ of tectonic plates
- 10. type of reaction that forms H2O and CO2
- 12. creates proteins for the cell
- 13. speeds up rate of reaction
- 16. single-cell organism with no nucleus
- 18. North Star