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Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 221 · 40 questions
TalentJR

What you do (Heaviest for its size sinks): 1. Pour honey slowly into the glass to fill about a quarter. 2. Pour coloured water gently down the side of the glass. 3. Pour the cooking oil gently on top and watch the layers settle. 4. Gently drop in a cork and a coin, see where each stops, and wipe up oil spills.

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  1. 1.True or false: honey is needed for the density tower. (a) False (b) True
  2. 2.True or false: a mirror is not needed for the density tower. (a) True (b) False
  3. 3.🧺 Do we need yeast for the density tower? (a) not needed (b) needed
  4. 4.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) cooking oil (b) a tall clear glass (c) a balloon (d) water with food colour
  5. 5.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? True or false: the order of the layers is what we measure. (a) False (b) True
  6. 6.🧺 Do we need honey for the density tower? (a) needed (b) not needed
  7. 7.🧺 Which of these is needed for the density tower? (a) a magnet (b) a mirror (c) turmeric powder (d) water with food colour
  8. 8.🍯 Is a coin denser or less dense than water? (a) denser than water (b) less dense than water
  9. 9.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a spoon (b) honey (c) cooking oil (d) a mirror
  10. 10.🔍 Which is the odd one out? (a) a glass marble (b) a ping-pong ball (c) cooking oil (d) air
  11. 11.🧺 Do we need a spoon for the density tower? (a) not needed (b) needed
  12. 12.True or false: a glass marble is denser than water. (a) False (b) True
  13. 13.🔮 Predict: you gently drop a coin into the tower. Where does it end up? (a) in the oil layer (b) in the water layer (c) on top of the oil (d) at the very bottom
  14. 14.🧺 Which of these is not needed for the density tower? (a) a spoon (b) honey (c) a balloon (d) a tall clear glass
  15. 15.🛟 Which rule keeps the density tower experiment safe? (a) do not lick the spoon (b) taste each layer (c) pour it on the floor (d) throw the glass
  16. 16.True or false: very salty water is denser than water. (a) True (b) False
  17. 17.True or false: a magnet is needed for the density tower. (a) True (b) False
  18. 18.🍯 Is cooking oil denser or less dense than water? (a) less dense than water (b) denser than water
  19. 19.🍯 Is air denser or less dense than water? (a) denser than water (b) less dense than water
  20. 20.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they become solid (b) they separate again (c) they turn to honey (d) they mix for ever
  21. 21.🧺 Which of these is not needed for the density tower? (a) a mirror (b) a spoon (c) cooking oil (d) honey
  22. 22.🧺 Do we need a tall clear glass for the density tower? (a) not needed (b) needed
  23. 23.🫗 Why does cooking oil float on top of water? (a) oil is heavier (b) oil is sticky (c) oil is hot (d) oil is less dense
  24. 24.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) water with food colour (b) a magnet (c) a spoon (d) a tall clear glass
  25. 25.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? Which of these is what we measure? (a) the same three liquids (b) the order of the layers (c) the order of pouring (d) how much of each liquid
  26. 26.True or false: a balloon is needed for the density tower. (a) False (b) True
  27. 27.🔍 Which is the odd one out? (a) a pebble (b) a coin (c) honey (d) a ping-pong ball
  28. 28.True or false: a coin is less dense than water. (a) True (b) False
  29. 29.🧺 Which of these is needed for the density tower? (a) yeast (b) a mirror (c) turmeric powder (d) honey
  30. 30.True or false: a magnet is not needed for the density tower. (a) False (b) True
  31. 31.True or false: a spoon is not needed for the density tower. (a) False (b) True
  32. 32.🍯 Which of these is denser than water? (a) air (b) honey (c) an ice cube (d) cooking oil
  33. 33.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) under the honey (b) in the water layer (c) on top of the oil (d) in the honey layer
  34. 34.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? What do we do with “the order of pouring”? (a) we change it (b) we keep it the same (c) we measure it
  35. 35.🍯 Which of these is denser than water? (a) air (b) very salty water (c) cooking oil (d) a ping-pong ball
  36. 36.🔍 Which is the odd one out? (a) a glass marble (b) a coin (c) honey (d) a cork
  37. 37.🧺 Do we need a magnet for the density tower? (a) needed (b) not needed
  38. 38.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? What do we do with “the same glass”? (a) we change it (b) we keep it the same (c) we measure it
  39. 39.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? True or false: the same three liquids is kept the same. (a) False (b) True
  40. 40.True or false: a pebble is denser than water. (a) True (b) False

Answer key

  1. True
  2. True
  3. not needed
  4. a balloon
  5. True
  6. needed
  7. water with food colour
  8. denser than water
  9. a mirror
  10. a glass marble
  11. needed
  12. True
  13. at the very bottom
  14. a balloon
  15. do not lick the spoon
  16. True
  17. False
  18. less dense than water
  19. less dense than water
  20. they separate again
  21. a mirror
  22. needed
  23. oil is less dense
  24. a magnet
  25. the order of the layers
  26. False
  27. a ping-pong ball
  28. False
  29. honey
  30. True
  31. False
  32. honey
  33. on top of the oil
  34. we change it
  35. very salty water
  36. a cork
  37. not needed
  38. we keep it the same
  39. True
  40. True

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