Across
- 4. an idea about what will happen in the future
- 5. a combination of two or more substances that do not form a new substance
- 6. stored energy (ex. a roller coaster car at the top of a hill)
- 8. the air that surrounds Earth
- 9. a material that does not let heat energy or electricity pass through it easily
- 17. consists of two different forms (kinetic & potential)
- 20. energy of moving particles (ex. heart from an oven, toaster, sun)
- 21. a complete path of conductors that an electrical current can flow through
- 23. a force between two surfaces rubbing against each other
- 24. the amount of matter in an object or substance
- 26. the temperature at which a substance changes from a liquid to a gas
- 28. the ability to do work
Down
- 1. the bouncing back of light rays from a surface
- 2. a push or a pull
- 3. energy of motion (ex. bowling ball rolling down an alley)
- 5. a force that pulls magnetic materials across a distance
- 6. a property that can be observed, measured, or changed without changing the substance itself
- 7. a form of energy that travels in waves (ex. light bulb, stars, computer screen)
- 10. the process of changing from a gas to a liquid
- 11. produced by vibrating objects (ex. loud speaker, radio, tv, wind)
- 12. the change of water from one state to another as it moves between Earth's surface and the atmosphere
- 13. the gas state of water
- 14. to form a solution with another substance
- 15. the area around a magnet where the force of magnetism can be felt
- 16. water that falls to Earth's surface as rain, snow, sleet, or hail
- 18. a mixture with one substance spread out so evenly in another substance that you cannot tell the two substances apart
- 19. the process of changing from a liquid to a gas
- 22. continuing without stop
- 25. the material that allows heat energy or electricity to pass it easily
- 27. a measure of the pull of gravity in an object