Across
- 1. change, a change that involves atoms rearranging to form new substances
- 4. law of conservation of mass, mass cannot be created nor destroyed
- 6. system, a system in which mass and energy cannot enter or escape
- 8. to collect toxic waste so it can be used again
- 9. reaction, a reaction that involves creating new substances and rearranging atoms
- 12. liquid, gas, solid
- 13. nothing is gained nor lost
- 15. a solid that fired when you mix two liquid substances
- 16. limitations to your design
- 17. system, a system in which energy and mass can both enter and escape
Down
- 2. more energy is being gained than emitted
- 3. what you get after a chemical reaction
- 4. energy, the total energy of motion of the particles in a sample of a substance
- 5. things you need to make the reaction happen
- 7. an early model of a product
- 10. more energy is being emitted than gained
- 11. the minimum
- 14. to mix substances on a scale of individual particles