science project

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Across
  1. 6. energy in the form of heat
  2. 8. the universal force of attraction
  3. 9. a fundamental interaction of nature that acts between subatomic particles of matter.
  4. 10. between all matter.
  5. 11. the central, densest part of the atom, which is composed of protons and neutrons
Down
  1. 1. is stronger than gravity, but it is only effective at very short distances.
  2. 2. solid, liquid, gas or plasma
  3. 3. a massive ball of gas in outer space that gives off heat, light, and other forms of radiation
  4. 4. science of charge and of the forces and fields associated with charge.
  5. 5. an attractive force that occurs between all objects that have mass
  6. 7. release of energy or matter from components in a system