Science vocab

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Across
  1. 4. Energy that is possessed by an object
  2. 6. Anything with mass that occupies space
  3. 12. Made up of particles that are not uniformly distributed
  4. 13. Process that releases energy into surroundings
  5. 15. Matter with constant composition
Down
  1. 1. Matter with variable composition
  2. 2. When an organism absorbs light to create energy
  3. 3. Process that absorbs energy from surroundings
  4. 5. Solid at room temperature
  5. 7. Energy of motion
  6. 8. Chemical process that allows cells to release energy
  7. 9. Made up of particles that are uniformly distributed
  8. 10. A substance made from two or more elements
  9. 11. Many are gasses but the solids are brittle
  10. 14. A substance made up of atoms with the same atomic number