Year 8 Chemistry Test Revision

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Across
  1. 1. metals have this property which means that bend or change shape without breaking or cracking
  2. 3. vertical columns on the periodic table
  3. 5. More than one element chemically bonded together, which cannot be physically separated
  4. 7. horizontal rows on the periodic table
  5. 9. a substance made of one type of particle (atom, molecule or lattice) includes elements and compounds
  6. 12. The new substances that are formed in a chemical reaction.
  7. 14. how poisonous something is
  8. 16. more than one atom chemically bonded together
  9. 19. A substance’s ______________ properties define what it does in a chemical reaction. They can only be observed during chemical changes.
  10. 20. metals are located on this side of the periodic table
  11. 21. centre of an atom, surrounded by the electron cloud
  12. 24. element with the symbol Fe
  13. 25. three-dimensional arrangement of particles in a regular pattern
  14. 26. silicon is this type of element
  15. 27. products are found on this side of a word equation
  16. 28. element with the symbol Pb
Down
  1. 1. Groups of two or more elements or compounds that are NOT chemically bonded together, can be separated by chemical or physical means
  2. 2. subatomic particle with no charge found in the nucleus
  3. 4. the smallest piece of individual matter that can exist by itself
  4. 6. the relationship between the mass and volume of a substance
  5. 7. a substance's ______________ properties can be observed and measured either without changing it or through a physical change
  6. 8. positively charged subatomic particle found in the nucleus
  7. 10. element with the symbol Na
  8. 11. a type of change where a substance might look different, but its the same chemical before and after, and is usually reversible
  9. 13. The substances you start with in a chemical reaction.
  10. 15. negatively charged subatomic particle in the electron cloud
  11. 17. a pure substance that is made up of just one type of atom
  12. 18. element with the symbol K
  13. 22. element with the symbol Cl
  14. 23. a type of change where a new substance has been formed with different particles (atoms / molecules), generally irreversible
  15. 28. for this physical property, metals have a shiny one and non-metals have a dull one