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Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 305 · 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.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they separate again (b) they mix for ever (c) they become solid (d) they turn to honey
  2. 2.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a magnet (b) a spoon (c) water with food colour (d) cooking oil
  3. 3.🍯 Is a ping-pong ball denser or less dense than water? (a) denser than water (b) less dense than water
  4. 4.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a spoon (b) a balloon (c) cooking oil (d) a tall clear glass
  5. 5.🍯 Is a pebble denser or less dense than water? (a) less dense than water (b) denser than water
  6. 6.🔍 Which is the odd one out? (a) a cork (b) a coin (c) an ice cube (d) a ping-pong ball
  7. 7.🔍 Which is the odd one out? (a) a pebble (b) a cork (c) a glass marble (d) very salty water
  8. 8.True or false: a magnet is not needed for the density tower. (a) False (b) True
  9. 9.🧺 Which of these is not needed for the density tower? (a) a tall clear glass (b) cooking oil (c) a spoon (d) a magnet
  10. 10.True or false: a magnet is needed for the density tower. (a) False (b) True
  11. 11.True or false: water with food colour is needed for the density tower. (a) False (b) True
  12. 12.🔍 Which layer is on top in the honey-water-oil tower? (a) the spoon (b) honey (c) cooking oil (d) coloured water
  13. 13.⚖️ 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 “how much of each liquid”? (a) we change it (b) we measure it (c) we keep it the same
  14. 14.🧺 Which of these is not needed for the density tower? (a) water with food colour (b) honey (c) a tall clear glass (d) a battery cell
  15. 15.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? Which of these is the one thing we change? (a) the same glass (b) the order of pouring (c) the same three liquids (d) the order of the layers
  16. 16.🍯 Which of these is less dense than water? (a) a coin (b) cooking oil (c) a pebble (d) a glass marble
  17. 17.True or false: an ice cube is denser than water. (a) False (b) True
  18. 18.True or false: cooking oil is less dense than water. (a) False (b) True
  19. 19.🍯 Which of these is less dense than water? (a) a cork (b) honey (c) a coin (d) very salty water
  20. 20.🍯 Which of these is denser than water? (a) air (b) an ice cube (c) very salty water (d) a ping-pong ball
  21. 21.🫗 Why does cooking oil float on top of water? (a) oil is hot (b) oil is heavier (c) oil is less dense (d) oil is sticky
  22. 22.🛟 Which rule keeps the density tower experiment safe? (a) do not lick the spoon (b) throw the glass (c) taste each layer (d) pour it on the floor
  23. 23.True or false: a battery cell is not needed for the density tower. (a) False (b) True
  24. 24.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) water with food colour (b) cooking oil (c) turmeric powder (d) a spoon
  25. 25.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) water with food colour (b) a spoon (c) a tall clear glass (d) a mirror
  26. 26.🍯 Is honey denser or less dense than water? (a) less dense than water (b) denser than water
  27. 27.🛟 Why should we wipe up spilled oil at once? (a) oil turns into honey (b) oil attracts magnets (c) spilled oil is slippery (d) oil makes it rain
  28. 28.🧺 Do we need a tall clear glass for the density tower? (a) not needed (b) needed
  29. 29.📘 What does “dense” mean? (a) heavy for its size (b) very thin (c) very hot (d) very colourful
  30. 30.🧺 Do we need water with food colour for the density tower? (a) not needed (b) needed
  31. 31.🔍 Which is the odd one out? (a) a coin (b) air (c) honey (d) very salty water
  32. 32.True or false: a battery cell is needed for the density tower. (a) True (b) False
  33. 33.🍯 Which of these is less dense than water? (a) very salty water (b) a pebble (c) honey (d) a ping-pong ball
  34. 34.🔍 Which is the odd one out? (a) air (b) a ping-pong ball (c) a pebble (d) a cork
  35. 35.🍯 Which of these is denser than water? (a) cooking oil (b) a ping-pong ball (c) a cork (d) honey
  36. 36.True or false: a pebble is denser than water. (a) False (b) True
  37. 37.True or false: cooking oil is not needed for the density tower. (a) True (b) False
  38. 38.🧺 Which of these is needed for the density tower? (a) a spoon (b) turmeric powder (c) yeast (d) a balloon
  39. 39.🧺 Which of these is needed for the density tower? (a) a balloon (b) a battery cell (c) a tall clear glass (d) yeast
  40. 40.True or false: a spoon is not needed for the density tower. (a) True (b) False

Answer key

  1. they separate again
  2. a magnet
  3. less dense than water
  4. a balloon
  5. denser than water
  6. a coin
  7. a cork
  8. True
  9. a magnet
  10. False
  11. True
  12. cooking oil
  13. we keep it the same
  14. a battery cell
  15. the order of pouring
  16. cooking oil
  17. False
  18. True
  19. a cork
  20. very salty water
  21. oil is less dense
  22. do not lick the spoon
  23. True
  24. turmeric powder
  25. a mirror
  26. denser than water
  27. spilled oil is slippery
  28. needed
  29. heavy for its size
  30. needed
  31. air
  32. False
  33. a ping-pong ball
  34. a pebble
  35. honey
  36. True
  37. False
  38. a spoon
  39. a tall clear glass
  40. False

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