Across
- 4. basic unit of life
- 6. transfer of heat from one place to another, hot to cold or cold to hot
- 7. amount of matter in an object
- 9. Change in speed or direction
- 14. makes their own food
- 16. the natural movement of air in the atmosphere
- 17. when the whole species dies out
- 18. non-living things
- 21. where stars are formed
- 24. basic unit of everything
- 25. negative charged sub atomic particles
- 26. mass of air surrounding the earth
Down
- 1. the explosion when some stars die out
- 2. weather change due to the position of earth around the sun
- 3. large storm that forms over war ocean water
- 5. breaks down dead material
- 8. a ____ front brings warmer and dry air
- 10. unit of mass for atoms
- 11. eats producers
- 12. a ____ front brings cold and raining weather
- 13. living things
- 15. how high something is compared to sea level
- 19. only eats other animals
- 20. anything that has volume and mass
- 22. how many difference species in an ecosystem
- 23. Push or a pull
- 25. what separates the northern and southern hemisphere