Across
- 3. Chemical reactions that absorb heat energy
- 5. Material that has mass and takes up space
- 6. Combined substances that can be physically separated
- 8. Forces that hold atoms together
- 9. The smallest unit of an element
- 10. A substance that is formed when elements combine
- 11. The amount of matter in an object
- 12. Two or more atoms bonded together
- 14. A substance that cannot be destroyed
- 15. Represents before a chemical change
- 16. A characteristic that is measurable and seen during a chemical reaction
- 17. Same substance molecules sticking together
Down
- 1. Bubbling, Change of substance, change of color, sizzles, and a new odor
- 2. A characteristic that can be seen
- 4. A substance after a chemical reaction
- 7. The amount of Space that an object takes up
- 13. The ability to do work or cause a change
- 14. A reaction that gives off heat energy