GRADE 4 SCIENCE

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Across
  1. 1. Insects have _______ legs.
  2. 4. The biggest animal in the ocean is the _______ whale.
  3. 5. A mammal that can fly.
  4. 11. Animals with a backbone
  5. 12. The green substance plants need for photosynthesis.
  6. 18. Fish breathe using _______.
  7. 19. Reptiles have dry _______ on their bodies.
  8. 20. Warm-blooded animals keep their body temperature the _______.
Down
  1. 2. Animals without a backbone
  2. 3. A sugar made during photosynthesis.
  3. 6. Plants make their own food through _______.
  4. 7. A penguin cannot _______ but it swims fast.
  5. 8. Birds are covered with _______.
  6. 9. Flowers and seeds help plants to _______.
  7. 10. The part of the plant that absorbs water from the soil.
  8. 13. Gas released by plants during photosynthesis.
  9. 14. Mammals are covered with _______.
  10. 15. The part of the plant that makes food.
  11. 16. Mammals feed their young with _______.
  12. 17. Amphibians lay _______-like eggs in water.