Science Review

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