2024-2025 Grade 8 Integrated Science

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Across
  1. 3. The change from gas to liquid.
  2. 6. A protein that speeds up chemical reactions in the body.
  3. 10. Spreading apart (e.g., light rays through a concave lens).
  4. 12. The gradual destruction of materials by chemical reaction.
  5. 14. Coming together (e.g., light rays through a convex lens).
  6. 17. The new substances formed in a chemical reaction.
  7. 18. The process of sediments sticking together to form rock.
  8. 19. Allows some light to pass through but not clearly.
  9. 21. The distance between two wave crests.
  10. 25. change of energy from one form to the other.
  11. 28. The starting substances in a chemical reaction.
  12. 29. rock formed from heat and pressure on other rocks.
  13. 31. A measure of the average kinetic energy of particles.
  14. 33. Does not allow light to pass through.
  15. 36. The process of breaking down food into nutrients.
  16. 37. The change from liquid to gas at the surface.
  17. 42. Warming that results when gases trap heat in the atmosphere.
  18. 45. A blood vessel that carries blood to the heart.
  19. 47. Transfer of heat through direct contact.
  20. 48. An element that is shiny, malleable, and conducts heat.
  21. 49. The movement of particles from high to low concentration.
  22. 51. Bouncing of light off a surface.
  23. 55. The ability to do work.
  24. 56. The process where nutrients pass into the bloodstream.
  25. 57. A mixture of metals.
  26. 59. Allows light to pass through clearly.
  27. 61. rock formed from layers of sediment.
Down
  1. 1. Squeezing of sediments by pressure.
  2. 2. A lens or mirror that curves outward.
  3. 4. Material used to reduce heat transfer.
  4. 5. The act of taking food into the mouth.
  5. 7. Two or more atoms bonded together.
  6. 8. energy Stored energy due to position.
  7. 9. A substance that provides nourishment for growth.
  8. 11. Mass per unit volume.
  9. 13. A lens or mirror that curves inward.
  10. 15. A harmful substance released into the environment.
  11. 16. energy Energy of motion.
  12. 20. Transfer of heat through fluids (liquids or gases).
  13. 22. The total area that the surface of an object occupies.
  14. 23. rock formed from cooled magma or lava.
  15. 24. Allows liquids or gases to pass through.
  16. 26. A chemical reaction between a fuel and oxygen.
  17. 27. Bending of light as it passes from one medium to another.
  18. 30. The process of releasing energy from food.
  19. 32. A blood vessel that carries blood away from the heart.
  20. 34. The basic unit of a chemical element.
  21. 35. A naturally occurring solid with a crystal structure.
  22. 38. Contains tiny holes that allow water or air to pass.
  23. 39. A type of corrosion that occurs with iron.
  24. 40. A substance made of two or more elements chemically joined.
  25. 41. Breaking down of rocks into smaller pieces.
  26. 43. Movement of rock particles by wind or water.
  27. 44. Force that pulls objects toward each other.
  28. 45. An outer shell electron that can form chemical bonds.
  29. 46. Transfer of energy through electromagnetic waves.
  30. 50. A material that releases energy when burned.
  31. 52. Wearing down of rock by friction.
  32. 53. The movement of air in and out of the lungs.
  33. 54. Type of respiration that uses oxygen.
  34. 58. A pure substance made of only one kind of atom.
  35. 60. Thermal energy transferred between objects.