Vocabulary contract #7

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Across
  1. 2. Positively charged particle of an atom.
  2. 4. Table where elements are organized by increasing atomic number.
  3. 5. A fossil fuel refined from natural gas and Petroleum.
  4. 6. Substance made up of atoms with the same identity.
  5. 9. Energy sources replenished in a short amount of time.
  6. 12. Energy sources replenished slower than they are used.
  7. 13. Looks like a black liquid also known as crude oil.
  8. 14. Used in nuclear power plants to perform fission which spits the atoms creating energy.
Down
  1. 1. Energy created by the force of moving water.
  2. 2. Stored energy and the energy of position.
  3. 3. Energy of motion; motion of waves, electrons, atoms, molecules, and substances.
  4. 7. Heat energy from the Earth.
  5. 8. A solid, black, fossil fuel used for energy.
  6. 10. Energy from natural matter that was once living.
  7. 11. A colorless and odorless fossil fuel, made of mostly methane.