Across
- 6. a blank has north and south poles
- 7. when heat is absorbed by a solid, the molecules vibrate
- 8. the blank of an object tells us how massive something is for its size
- 9. each blank has its own density
- 10. when water absorbs enough heat, it turns into a
- 12. the number of blank in an atom determines what an element is
- 13. an objects ability to float is called its
- 14. materials blank at they get hotter
- 16. a measure of the amount of matter in an object is
- 18. every substance has its own particular melting point
- 20. gases fill the blank of their containers
Down
- 1. when a liquid blank it gradually changes to a gas
- 2. materials blank as they get cooler
- 3. an objects weight depends on its blank
- 4. when the temperature of a material increases its particles move
- 5. opposite poles blank one another
- 7. air is much less Dence than water so a beachball
- 11. when heat is removed from a boiling point it
- 15. scientists write symbols for compounds called
- 17. a blank is the smallest unit of an element the retains the properties of the element
- 19. take the shape of their containers