Q3 Review

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Across
  1. 3. Two or more atoms bonded together.
  2. 4. The unit of measurement of energy.
  3. 8. The goal of a design.
  4. 10. Energy transfer through direct contact.
  5. 11. A reaction that absorbs energy.
  6. 12. The variable the scientist keeps the same.
  7. 14. The energy of particle motion.
  8. 15. The variable the scientist changes on purpose.
  9. 18. The energy of heat.
  10. 19. Energy transfer through the air in waves.
Down
  1. 1. When a new substance is produced because of atoms rearranging.
  2. 2. The rules or regulations of a design.
  3. 5. The variable the scientist measures.
  4. 6. A material found in nature.
  5. 7. Energy transfer through hot particles rising and cold particles sinking.
  6. 9. molecules made of repeating groups of atoms.
  7. 13. A material made by humans out of natural resources.
  8. 16. A reaction that releases energy
  9. 17. The basic unit of matter.