Year 9-10 Science Week Crossword

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Across
  1. 2. An added substance to a chemical reaction that is not consumed, to help speed up the reaction
  2. 4. The quality of a sound wave that quantifies its volume
  3. 7. Nerve cell
  4. 8. Plant process that converts light and water to energy
  5. 10. Chemical reaction between aqueous substances that forms a solid product
  6. 12. Change in velocity over time
  7. 13. Same element with different number of neutrons
  8. 15. Positively charged ion
  9. 16. Non-living factors that affect an environment
  10. 18. A living thing
Down
  1. 1. Hot fluid under the Earth
  2. 3. Chemical reaction that releases heat
  3. 5. The variable that we measure
  4. 6. Force multiplied by displacement
  5. 9. Explosion of a star
  6. 11. Unit of measurement for force
  7. 14. Inheritance pattern of a trait in a family
  8. 15. Outer layer of the Earth
  9. 17. His law relates voltage, current and resistance