Science Topic

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Across
  1. 2. – a mixture where one substance dissolves in another.
  2. 3. – a process where microorganisms break down sugar to produce alcohol, gas, or acid.
  3. 6. – starting substances in a chemical reaction.
  4. 8. – the force applied on a surface or area.
  5. 11. – a unit used to measure the amount of a substance in chemistry.
  6. 13. – the amount of space something occupies.
  7. 14. – the gradual change of organisms over time.
  8. 16. – a unit for measuring temperature.
  9. 18. – the gradual destruction of materials (like rusting).
  10. 19. – proteins that speed up chemical reactions in living things.
  11. 21. – a substance that speeds up a chemical reaction.
  12. 22. – how hot or cold something is.
  13. 24. – how something looks.
  14. 29. – the release of light, gas, or particles.
  15. 30. – a device used to inject or withdraw fluids.
  16. 33. – a reddish metal used in wires and coins.
  17. 34. Law – scientific rules that explain how gases behave.
  18. 37. – a reaction where two or more substances form one product.
  19. 38. – molecules found in living organisms (like DNA, proteins).
  20. 39. – groups of atoms bonded together.
Down
  1. 1. – numbers placed in front of formulas in equations to balance them.
  2. 4. – becomes larger or greater.
  3. 5. – large molecules made of repeating units (like plastics).
  4. 7. – substances formed after a chemical reaction.
  5. 8. – nutrients that build and repair body tissues.
  6. 9. – a gas needed for breathing and burning.
  7. 10. – the layer of gases surrounding the Earth.
  8. 12. – anything that has mass and occupies space.
  9. 15. – substances used in or produced by chemical reactions.
  10. 17. – a type of matter with uniform properties.
  11. 20. – making sure both sides of a chemical equation have equal atoms.
  12. 23. – the loss of water from a substance or body.
  13. 25. – the smallest unit of an element.
  14. 26. – a safety device in vehicles that inflates during a crash.
  15. 27. – the process of burning with oxygen.
  16. 28. – having no color.
  17. 31. – a state of matter with no fixed shape or volume.
  18. 32. – rearranging or moving parts to make something balanced.
  19. 35. – the rate at which velocity changes.
  20. 36. – substances with a specific composition and properties.