Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 131 · 40 questions

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.

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

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