Across
- 3. one half the distance between a crest and a trough
- 5. any change of a material into a new material with different properties
- 7. negative subatomic particle
- 9. force that opposes sliding between two forces that are touching
- 12. matter with a definite volume but no definite shape
- 13. anything that takes up space and has mass
- 17. push or pull
- 21. - no definite volume or shape
- 22. energy an object has due to its motion
- 23. transfer of heat in a fluid
- 26. atoms with a positive or negative charge
- 27. educated guess
- 28. speeds up, slows down, or turns
- 30. - bouncing back of a wave from a surface
- 31. mass divided by volume
Down
- 1. a type of mechanical wave in which matter moves forward and backward along the direction of the wave
- 2. number of protons in an atom
- 4. definite shape and volume
- 6. type of mechanical wave in which matter moves perpendicular to the direction of the wave
- 8. circular path electricity flows through
- 10. electric ______ is the flow of electricity through a circuit
- 11. material in which electrons cannot move easily
- 14. very small particle that makes up most kinds of matter
- 15. ability to cause change
- 16. neutral subatomic particle
- 18. transfer of thermal energy by direct contact
- 19. speed plus direction
- 20. positive subatomic particle
- 24. amount of matter in an object
- 25. number of wavelengths that pass a given point in one second
- 29. rhythmic disturbance that carries energy not matter