The Greenhouse Effect

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Across
  1. 4. Harmful substances added to the environment
  2. 5. Energy that warms the planet
  3. 7. Part of carbon dioxide
  4. 9. Greenhouse gas released by animals
Down
  1. 1. Traps heat in Earth’s atmosphere
  2. 2. Energy from the Sun that reaches Earth
  3. 3. Gas combined with carbon to form CO2
  4. 6. Layer of gases around Earth
  5. 8. Energy that travels as waves
  6. 10. Ability to do work or cause change