Matter

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Across
  1. 3. Are substances that are made of only one type of atom and cannot be broken down into simpler substances by normal chemical or physical means
  2. 7. Particles with a negative charge
  3. 8. Is made up of tiny particles
Down
  1. 1. Anything that takes up space
  2. 2. Are particles that have a positive charge
  3. 4. number Equals the number of protons and the number of neutrons
  4. 5. Have no charge
  5. 6. Number The number of Protons that equals the number of electrons