Science 4

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Across
  1. 4. Objects that completely blocks the light
  2. 8. They use their lungs and skin to breathe when they become adults
  3. 9. Objects that allows light to pass through it completely
  4. 10. Helps the plant support its branches
  5. 11. Unit of measurement used in mass
  6. 13. They have thick skin and dry hard scales
  7. 15. Allows the plant to absorb water and minerals from the soil
Down
  1. 1. Unit of measurement used in weight
  2. 2. Animals with bones linked together along the center of their bodies
  3. 3. Absorbs carbon dioxide through the stomata
  4. 5. Females are able to produce milk for the young
  5. 6. Animals with no backbones
  6. 7. its role is plant reproduction
  7. 12. They have 2 legs and fingers with scales on them
  8. 14. Force that pulls everything into the earth's center