Chemistry

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Across
  1. 3. It is part of your blood and is the fourth state of matter.
  2. 5. The smallest part in an atom with a negative charge.
  3. 6. An organization of chemical elements in the order of atomic numbers. (2 words)
  4. 9. This happens when you put mentos in a soda or have pop rocks in your mouth. (2 words)
  5. 12. Same size as another particle and has no electrical charge.
  6. 13. The atomic number is the number of how many _______.
  7. 14. Some people call this word the weather.
  8. 15. This is when a solid turns straight into a gas.
  9. 17. Two elements that mix together.
  10. 19. It is located in the middle of the atom with another particle and has a positive charge.
  11. 20. A substance you can see when you are cooking.
Down
  1. 1. When a liquid disappears and goes in the sky.
  2. 2. One or more atoms.
  3. 4. The shell of the tiniest part of an atom. (2 words)
  4. 7. An invisible substance that you can sometimes smell.
  5. 8. A state of matter you can see that has no definite shape.
  6. 10. Part of the water cycle when gas turns into a liquid.
  7. 11. Something that is hard like a rock and is the opposite of hollow.
  8. 16. It is in the middle of a atom and has protons and neutrons.
  9. 18. Everything is a solid, plasma, liquid and gas.