Across
- 1. anything that has mass and volume
- 3. a wave that needs a medium to travel
- 5. the smallest part of an element
- 7. the distance between crest and crest
- 9. a pure substance made out of one type of atom
- 13. a state of matter where the molecules are spread out and fly in all directions
- 14. the height of a wave, this controls volume
- 15. the screen at the back of the eye that turn the image into electrical signals
- 18. this type of wave moves forward and back, example a sound wave
- 19. how many waves pass per second, this controls pitch
- 21. heat transfer between objects that are not touching
- 22. heat transfer in a fluid
- 24. a substance dissolved in a liquid
- 26. heat transfer between two objects that are touching
- 27. the lowest point on the wave
Down
- 2. a wave that does not need a medium to travel
- 4. the snail shaped part of the ear that turns vibrations into electrical signals
- 6. this type of wave moves in an up and down pattern, example light waves
- 8. when heat is added to substance and it changes from a liquid to a gas
- 10. how much matter is in an object
- 11. an object that does not let heat pass easily
- 12. how close together atoms are packed together in a certain amount of space
- 16. a state of matter where the atoms are packed close together and vibrate
- 17. a state of matter where the molecules flow, it has no defined shape but has a definite volume
- 20. when an object is cooled and turns from a gas to a liquid
- 23. an object that does allow heat to pass easily
- 25. the amount of space something takes up