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Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 898 · 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.⚖️ 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 the layers”? (a) we keep it the same (b) we change it (c) we measure it
  2. 2.🧺 Which of these is needed for the density tower? (a) a mirror (b) a magnet (c) cooking oil (d) turmeric powder
  3. 3.🔍 Which is the odd one out? (a) cooking oil (b) air (c) an ice cube (d) a glass marble
  4. 4.⚖️ 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 glass is the one thing we change. (a) True (b) False
  5. 5.🔮 Predict: you gently drop a coin into the tower. Where does it end up? (a) at the very bottom (b) in the oil layer (c) on top of the oil (d) in the water layer
  6. 6.True or false: water with food colour is not needed for the density tower. (a) False (b) True
  7. 7.🧺 Do we need a magnet for the density tower? (a) needed (b) not needed
  8. 8.🛟 Which rule keeps the density tower experiment safe? (a) taste each layer (b) pour it on the floor (c) do not lick the spoon (d) throw the glass
  9. 9.🧺 Do we need a balloon for the density tower? (a) needed (b) not needed
  10. 10.True or false: honey is needed for the density tower. (a) True (b) False
  11. 11.True or false: a mirror is needed for the density tower. (a) True (b) False
  12. 12.🍯 Is a pebble denser or less dense than water? (a) denser than water (b) less dense than water
  13. 13.🍯 Is a ping-pong ball denser or less dense than water? (a) less dense than water (b) denser than water
  14. 14.🍯 Is a cork denser or less dense than water? (a) denser than water (b) less dense than water
  15. 15.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they turn to honey (b) they separate again (c) they mix for ever (d) they become solid
  16. 16.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) honey (b) a tall clear glass (c) cooking oil (d) a mirror
  17. 17.🫗 Why does cooking oil float on top of water? (a) oil is heavier (b) oil is sticky (c) oil is less dense (d) oil is hot
  18. 18.🧺 Which of these is needed for the density tower? (a) a battery cell (b) a magnet (c) a spoon (d) a balloon
  19. 19.⚖️ 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 order of pouring (b) the same three liquids (c) the order of the layers (d) the same glass
  20. 20.🔍 Which layer is on top in the honey-water-oil tower? (a) coloured water (b) honey (c) cooking oil (d) the spoon
  21. 21.🔍 Which is the odd one out? (a) a ping-pong ball (b) air (c) cooking oil (d) a coin
  22. 22.🧺 Which of these is not needed for the density tower? (a) a spoon (b) cooking oil (c) a battery cell (d) honey
  23. 23.🧺 Which of these is needed for the density tower? (a) a battery cell (b) a balloon (c) a mirror (d) honey
  24. 24.🧺 Which of these is not needed for the density tower? (a) a mirror (b) a tall clear glass (c) honey (d) cooking oil
  25. 25.⚖️ 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 three liquids”? (a) we measure it (b) we keep it the same (c) we change it
  26. 26.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) cooking oil (b) a tall clear glass (c) a battery cell (d) a spoon
  27. 27.🍯 Is air denser or less dense than water? (a) denser than water (b) less dense than water
  28. 28.🧺 Do we need a tall clear glass for the density tower? (a) needed (b) not needed
  29. 29.🧺 Do we need a mirror for the density tower? (a) not needed (b) needed
  30. 30.True or false: a ping-pong ball is denser than water. (a) True (b) False
  31. 31.🔍 Which is the odd one out? (a) an ice cube (b) a pebble (c) very salty water (d) a coin
  32. 32.True or false: a pebble is less dense than water. (a) True (b) False
  33. 33.True or false: a tall clear glass is not needed for the density tower. (a) True (b) False
  34. 34.True or false: a magnet is needed for the density tower. (a) False (b) True
  35. 35.True or false: cooking oil is less dense than water. (a) False (b) True
  36. 36.True or false: a magnet is not needed for the density tower. (a) True (b) False
  37. 37.🔍 Which is the odd one out? (a) a coin (b) a cork (c) honey (d) a pebble
  38. 38.🔍 Which is the odd one out? (a) a pebble (b) a ping-pong ball (c) a coin (d) very salty water
  39. 39.🛟 Why should we wipe up spilled oil at once? (a) oil turns into honey (b) oil makes it rain (c) spilled oil is slippery (d) oil attracts magnets
  40. 40.True or false: a pebble is denser than water. (a) False (b) True

Answer key

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

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