End of Term Crossword

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Across
  1. 4. A change in state or appearance without forming a new substance.
  2. 5. – A reaction that absorbs heat.
  3. 7. A change where a new substance is formed.
  4. 8. – A reaction where a compound breaks down into simpler substances.
  5. 13. A high-energy state of matter where atoms are ionized.
  6. 14. – A reaction where a substance burns in oxygen to release heat and light.
  7. 16. – A reaction between an acid and a base forming salt and water.
  8. 19. A state of matter with no fixed shape or volume, expanding to fill any container.
  9. 21. The process of changing from a liquid to a solid.
  10. 22. When an object is denser than the liquid it is in, it will sink.
  11. 23. The mass per unit volume of a substance (measured in g/cm³ or kg/m³).
  12. 24. A state of matter with a fixed shape and volume.
  13. 25. A reaction that releases heat.
  14. 26. The temperature at which a liquid changes into a gas throughout the liquid.
Down
  1. 1. The force exerted per unit area (measured in Pascals, Pa).
  2. 2. The amount of space an object or substance takes up (measured in cm³ or m³).
  3. 3. A state of matter with a fixed volume but takes the shape of its container.
  4. 6. A measure of the average kinetic energy of particles in a substance.
  5. 9. The temperature at which a solid changes into a liquid.
  6. 10. The process where a liquid turns into a gas at the surface.
  7. 11. The process where a solid changes directly to a gas without becoming a liquid.
  8. 12. The process of changing from a solid to a liquid.
  9. 14. – A gas cooling to become a liquid.
  10. 15. The substances that react in a chemical reaction.
  11. 17. – A reaction where a substance reacts with oxygen.
  12. 18. The process where a gas turns into a liquid.
  13. 20. The new substances formed in a chemical reaction.