Matter Year 9

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Across
  1. 1. P
  2. 4. Found in the Nucleus of an atom
  3. 6. Ag
  4. 8. Contain electrons. Surround the nucleus of an atom
  5. 9. The smallest part of an atom. electrons orbit the nucleus
  6. 10. N
  7. 12. Si
  8. 15. A pure substance made of only one kind of atom
  9. 17. O
  10. 19. Cu
  11. 21. Al
  12. 23. A physical change when a substance dissolves in a solvent. eg raro dissolving in water
  13. 25. A substance that can dissolve another
  14. 30. C
  15. 31. Hg
  16. 32. directly into a solid
  17. 33. Pt
  18. 35. Na
  19. 36. He
  20. 39. The centre of an atom. Contains protons and nucleus
  21. 41. A change of state from gas to liquid. eg steam to water
  22. 42. A substance made up of atoms of two or more different elements joined by chemical bonds
  23. 45. When a liquid changes state into a gas
Down
  1. 2. K
  2. 3. Cl
  3. 5. When a liquid changes state into a solid
  4. 7. B
  5. 11. Au
  6. 13. Found in the Nucleus of an atom
  7. 14. F
  8. 16. Be
  9. 18. A substance that dissolves in a solvent
  10. 20. A change of state from solid to liquid. eg ice turning to water
  11. 21. Smallest part of an element. Consists of Protons, Neutrons and electrons
  12. 22. Fe
  13. 24. A mixture containing solvent and solute
  14. 25. S
  15. 26. When a substance changes from a solid to a gas
  16. 27. Zn
  17. 28. Ca
  18. 29. Ar
  19. 34. Li
  20. 36. H
  21. 37. Ne
  22. 38. When a the particles of a substance can be squashed into a smaller space. Gases can be compressed but solids cannot
  23. 40. When particles of a substance move from high concentration to low concentration. eg perfume spreading through a room
  24. 43. Two or more substances mixed together. Mixtures can be separated
  25. 44. Pb