Across
- 2. the bending of light as it moves through one medium into another
- 4. the bouncing back of light rays from a surface
- 6. the amount of matter in something
- 10. the process of changing a substance from a solid to a liquid by adding thermal energy
- 13. the ability to do work
- 14. anything that has mass and takes up space
- 15. the path through which an electric current can flow
- 17. energy related to the temperature of an object or a substance
- 19. a state of matter in which the substance takes the shape of the container and has an unchanged volume when poured from one container to another
- 20. a state of matter in which the substance expands to take both the shape and the volume of its container
- 21. a substance or object that allows energy to flow through it easily
Down
- 1. energy of motion
- 3. energy produced by vibrations
- 5. energy that is absorbed or delivered by an electric circuit
- 7. a type of mixture in which the particles of one or more substances are dissolved (uniformly dispersed throughout) in another substance
- 8. a combination of two or more substances that can be easily separated in some physical way
- 9. a form of energy which our eyes can detect
- 11. the path through which an electric current cannot flow
- 12. a closed conducting circle or loop through which current can flow
- 16. a substance or object that does not allow energy to flow through it easily
- 18. a state of matter in which the substance has a set shape and size