Year 9 Science revision

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Across
  1. 1. Highest density
  2. 5. Father of the modern periodic table
  3. 7. A type of resistive force
  4. 10. Law that links force and extension
  5. 11. Appliance that produce less wasted energy
  6. 12. Two or more elements joined together
  7. 13. This material is a great insulator
  8. 16. A muscle in the arm
  9. 18. An organisms lives here
  10. 19. Gas to liquid
  11. 21. These organisms reproduce asexually
  12. 23. Mass per unit volume
  13. 24. Solar, wind and tidal power
  14. 26. Muscle contractions in digestion
  15. 27. rain A result of sulphur dioxide pollution
  16. 28. Aerobic respiration takes place here
  17. 29. Heat transfer in solids
Down
  1. 2. A drug that increases heart rate
  2. 3. Test for carbon dioxide
  3. 4. A seed grows
  4. 6. Objects slow down in water because of this
  5. 8. Site of gas exchange
  6. 9. A liquid that allows certain solids to dissolve in
  7. 11. Extra solute is visible at the bottom in the solution
  8. 14. A type of energy stored in objects in the air
  9. 15. Combustion releases heat
  10. 17. Group 1 in the periodic table
  11. 20. Solids and liquids don't have this ability
  12. 22. Breaks down starch into glucose
  13. 25. Name of sac that holds a developing foetus