Crossword puzzle

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Across
  1. 3. Animals that only eat meat
  2. 8. The transfer of heat in air
  3. 9. The transfer of heat in solids
  4. 10. Animals that eat both plants and meat
  5. 11. The transfer of heat in liquids
  6. 12. Sound that is reflected and bounces back
  7. 13. Animals that only eat plants
  8. 14. Energy we can see
Down
  1. 1. Animals that do not have a backbone
  2. 2. The hotness or coldness of an object
  3. 4. Animals that have a backbone
  4. 5. The intensity of sound waves
  5. 6. The process by which plants make food using sunlight
  6. 7. A tool we use to measure temperature