Year 7 End of Year crossword

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Across
  1. 3. what term refers to a solid that is being dissolved in a liquid
  2. 4. what term is given to two or more different types of atoms chemically bonded together?
  3. 6. what change of state is solid to liquid?
  4. 7. what term describes the random movement of particles from a high concentration to a low concentration?
  5. 9. what change of state is gas to liquid?
  6. 11. what name is given to the horizontal rows on the periodic table
  7. 14. which hazard warning symbol means something could kill you or cause you serious harm?
  8. 16. what term refers to the liquid a solid dissolves in
  9. 20. which hazard warning symbol means a chemical will destroy living tissue
  10. 21. what type of flame do you get on a Bunsen burner when the air hole is closed?
  11. 22. which hazard warning symbol means something catches fire easily
  12. 23. what term is given to a substance made from only one type of atom?
  13. 24. Substance X has a melting point of -5 oC and a boiling point of 50 oC. What state of matter is it at 25 oC?
Down
  1. 1. what change of state is liquid to gas?
  2. 2. what change of state is gas to solid?
  3. 5. where can we find all of the elements?
  4. 8. what name is given to the vertical columns on the periodic table
  5. 10. which element is needed for all living organisms to respire?
  6. 12. what change of state is solid to gas?
  7. 13. what state of matter are the majority of the elements at room temperature?
  8. 15. when lighting the Bunsen burner what position should the air hole be in?
  9. 17. which set of elements are found on the right hand side of the periodic table
  10. 18. what change of state is liquid to solid?
  11. 19. which set of elements are found on the left hand side of the periodic table