matter and change

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Across
  1. 3. a subatomic particle that is found in all atoms
  2. 4. a process that absorbs energy from the surroundings
  3. 5. the total mass of particles of matter in an atom
  4. 6. Atoms with the same number of protons but different numbers of neutrons
  5. 10. structure in a cell that contains the chromosomes.
  6. 12. is the energy pissed by an object due to its position, composition or condition
  7. 13. subatomic particles found inside the nucleus of every atom.
  8. 15. a process that releases energy into the surroundings
Down
  1. 1. one of the three fundamental states of matter
  2. 2. the kinetic energy (speed) of these particles increases as temperature increases
  3. 7. a matter which has a specific composition and specific properties
  4. 8. study of composition structure and properties of matter and the changes it undergoes.
  5. 9. made up of different elements joined together by a chemical bond
  6. 11. low KE- participles energy move around, but are still close together.
  7. 14. a subatomic particle with a positive electrical charge.