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Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 912 · 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 same glass”? (a) we measure it (b) we change it (c) we keep it the same
  2. 2.⚖️ 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
  3. 3.🧺 Do we need turmeric powder for the density tower? (a) needed (b) not needed
  4. 4.🍯 Is a ping-pong ball denser or less dense than water? (a) less dense than water (b) denser than water
  5. 5.🧺 Which of these is needed for the density tower? (a) a mirror (b) a balloon (c) honey (d) a magnet
  6. 6.🍯 Is an ice cube denser or less dense than water? (a) less dense than water (b) denser than water
  7. 7.True or false: a spoon is not needed for the density tower. (a) False (b) True
  8. 8.🍯 Which of these is denser than water? (a) cooking oil (b) a ping-pong ball (c) a pebble (d) a cork
  9. 9.🧺 Which of these is not needed for the density tower? (a) honey (b) a spoon (c) water with food colour (d) a battery cell
  10. 10.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) water with food colour (b) honey (c) a balloon (d) a tall clear glass
  11. 11.🔍 Which is the odd one out? (a) honey (b) very salty water (c) a ping-pong ball (d) a glass marble
  12. 12.⚖️ 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 kept the same. (a) True (b) False
  13. 13.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) in the water layer (b) on top of the oil (c) under the honey (d) in the honey layer
  14. 14.⚖️ 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 glass (c) the same three liquids (d) the order of the layers
  15. 15.🧺 Which of these is needed for the density tower? (a) water with food colour (b) yeast (c) a mirror (d) turmeric powder
  16. 16.🍯 Is honey denser or less dense than water? (a) denser than water (b) less dense than water
  17. 17.⚖️ 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
  18. 18.True or false: a battery cell is needed for the density tower. (a) False (b) True
  19. 19.True or false: a glass marble is less dense than water. (a) True (b) False
  20. 20.🧺 Do we need a magnet for the density tower? (a) needed (b) not needed
  21. 21.True or false: honey is needed for the density tower. (a) False (b) True
  22. 22.🧺 Do we need a spoon for the density tower? (a) not needed (b) needed
  23. 23.True or false: honey is denser than water. (a) False (b) True
  24. 24.🧺 Do we need water with food colour for the density tower? (a) not needed (b) needed
  25. 25.🧺 Which of these is not needed for the density tower? (a) water with food colour (b) honey (c) a spoon (d) a magnet
  26. 26.True or false: a tall clear glass is needed for the density tower. (a) True (b) False
  27. 27.True or false: very salty water is denser than water. (a) False (b) True
  28. 28.🛟 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
  29. 29.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) water with food colour (b) a tall clear glass (c) yeast (d) a spoon
  30. 30.🧺 Do we need cooking oil for the density tower? (a) not needed (b) needed
  31. 31.🔍 Which is the odd one out? (a) a cork (b) air (c) cooking oil (d) honey
  32. 32.True or false: turmeric powder is needed for the density tower. (a) True (b) False
  33. 33.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they turn to honey (b) they mix for ever (c) they become solid (d) they separate again
  34. 34.🧺 Which of these is not needed for the density tower? (a) cooking oil (b) a spoon (c) turmeric powder (d) honey
  35. 35.🍯 Which of these is less dense than water? (a) cooking oil (b) very salty water (c) honey (d) a coin
  36. 36.🧺 Do we need a battery cell for the density tower? (a) needed (b) not needed
  37. 37.True or false: a coin is less dense than water. (a) False (b) True
  38. 38.📘 What does “dense” mean? (a) very thin (b) very hot (c) heavy for its size (d) very colourful
  39. 39.True or false: a tall clear glass is not needed for the density tower. (a) False (b) True
  40. 40.🍯 Is a coin denser or less dense than water? (a) denser than water (b) less dense than water

Answer key

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

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