Across
- 2. The property that makes things stick together
- 4. A characteristic of a chemical reaction that is observed
- 6. A property observed without changing the substance
- 7. Amount of matter something takes up
- 9. A response to a situation
- 12. The amount of space matter takes up
- 15. Something that holds stuff together
- 16. The substance that participates in a reaction
- 17. Ability to do work
- 18. 2 or more substances put together
Down
- 1. The smallest part of a chemical bond
- 3. Absorbs or uses heat energy (reaction gets heat surroundings lose it)
- 5. A substance that speeds up a chemical reaction without being consumed in the reaction
- 8. Substance made up different elements bonded together
- 10. Science that deals with property of substances
- 11. The release of heat (turns hot)
- 13. Something that has weight and takes up space
- 14. The smallest unit of a substance