Physical Science Crossword

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Across
  1. 1. the amount of matter in an object
  2. 5. the amount of force exerted per unit of area.
  3. 6. a substance that stops or slows down the flow of thermal energy or electricity.
  4. 9. a chemical reaction that uses more energy than it gives off.
  5. 11. a chemical reaction that gives off more energy than it uses.
  6. 12. a column in the the periodic table.
  7. 14. any matter that flows when force is applied.
  8. 15. a substance that allows electricity or thermal energy to flow easily.
Down
  1. 2. the strongest known force in the universe, the force that holds the protons together in the nucleus.
  2. 3. a compound that creates hydroxide ions when dissolved in water.
  3. 4. the sum of all forces acting on an object.
  4. 7. a measure of the pulling force of gravity.
  5. 8. a measure of the concentration of hydronium ions in a solution.
  6. 10. the new substance made in a chemical reaction.
  7. 13. a mixture of two or more substances that are homogeneous at the molecular level.