Science Riddles Crossword

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Across
  1. 4. What is full of holes but still holds water?
  2. 6. What is harder to catch the more you run?
  3. 9. The more you take, the more you leave behind. What am I?
  4. 10. Which chemical doesn't like to follow?
  5. 13. I can be hot, I can be cold. I can run, and I can be still. I can be hard and I can be soft. What am I?
  6. 14. What comes once in a minute, twice in a moment, but never in a thousand years?
Down
  1. 1. What is black when you buy it, red when used, and grey when thrown away?
  2. 2. I am a god and a planet, and I am used to measuring temperature. What am I?
  3. 3. What kind of tree can fit in your hand?
  4. 5. What has a bottom at the top?
  5. 7. What goes up and down without moving?
  6. 8. What has a head and a tail, but no body?
  7. 11. What are 10 things you can always count on?
  8. 12. I am tall when I am young, and short when I am old. I have no voice, but I can make you cold. What am I?