Science

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Across
  1. 1. – When a solid like sugar disappears into a liquid but can be recovered.
  2. 4. – The starting substances in a chemical reaction.
  3. 5. – A solid like ice turns into a liquid without changing into a new substance.
  4. 7. – The rapid change from liquid to gas when a liquid reaches its boiling point.
  5. 8. – A reaction between proteins and sugars that gives browned food its flavour.
  6. 11. – Changing the shape of something like a rubber band without making a new substance.
  7. 12. – A mixture where small particles are spread out but do not settle, like milk.
  8. 13. – The opposite of sublimation; a gas turns straight into a solid.
  9. 14. – Making bread or cake by heating dough and causing irreversible changes.
  10. 16. – The process in the body that breaks down food into new substances.
  11. 18. – A way to reuse materials by changing their form, like melting cans to make new ones.
  12. 20. – A sudden release of energy that creates heat, light, and sound.
  13. 22. – The change of gas back into a liquid, like water droplets on a cold glass.
  14. 23. – A chemical process used to make bread rise or produce wine.
  15. 24. – The wearing away of metals by chemical reactions with the environment.
  16. 26. – The slow breakdown of once-living things after death.
  17. 27. – A mixture that looks the same throughout, like salt water.
Down
  1. 2. – When a solid changes directly into a gas, like dry ice.
  2. 3. – The breakdown of food or plants caused by bacteria or fungi.
  3. 6. – The new substances made in a chemical reaction.
  4. 7. – A reaction with oxygen that produces heat, light, and new substances like ash.
  5. 9. – When a liquid slowly turns into a gas, like a puddle disappearing on a hot day.
  6. 10. – The slow reaction of iron with oxygen and water to form a reddish coating.
  7. 15. – The rule that matter cannot be created or destroyed in a chemical reaction.
  8. 17. – The process where a liquid like water becomes a solid.
  9. 19. – Heating food to cause permanent changes in taste, texture, and smell.
  10. 21. – A mixture where you can see different parts, like a salad.
  11. 25. – A type of reaction where reduction and oxidation happen together.