Science

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Across
  1. 1. Parts of a fish that help it breathe underwater.
  2. 4. A thick layer of fat that keeps whales and penguins warm.
  3. 5. A state of matter that flows, like water or milk.
  4. 7. The bone that protects your brain.
  5. 8. When the sun heats water and it turns into vapor.
  6. 10. A state of matter that spreads out to fill any space.
  7. 12. The source of energy that starts the water cycle.
  8. 14. The line of bones down the middle of your back.
  9. 16. When an animal's color helps it hide in its home.
  10. 17. An animal that hunts and eats other animals.
  11. 19. The natural home of an animal or plant.
Down
  1. 2. A state of matter that keeps its own shape.
  2. 3. Water falling from the sky as rain or snow.
  3. 6. When water vapor cools down to form clouds.
  4. 7. All the bones inside a human or animal body.
  5. 9. These bones protect your heart and lungs.
  6. 11. The tiny "circles" that make up all matter.
  7. 13. The small bone at the front of your knee.
  8. 15. A very cold, snowy habitat where polar bears live.
  9. 18. Water that flows over the ground into rivers.