SCIENCE CROSSWORD

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Across
  1. 5. The product of mass and velocity of an object.
  2. 9. A chemical reaction where a substance loses electrons.
  3. 11. Materials that can be broken down naturally by microorganisms.
  4. 12. A substance that increases the rate of a chemical reaction without being consumed.
  5. 14. A weight suspended from a pivot, used to study motion.
Down
  1. 1. The distance between two consecutive peaks of a wave.
  2. 2. A subatomic particle with no electric charge.
  3. 3. The jelly-like substance inside a cell where organelles are located.
  4. 4. Atoms of the same element with different numbers of neutrons.
  5. 6. The organelle in plant cells where photosynthesis occurs.
  6. 7. The study of heredity and the variation of inherited traits.
  7. 8. The force that attracts objects toward the center of the Earth.
  8. 10. Law The relationship between voltage, current, and resistance.
  9. 13. The smallest unit of matter that retains the properties of an element.
  10. 15. A protein that speeds up chemical reactions in living organisms.