Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 35 · 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 sticky (c) oil is heavier (d) oil is less dense
2. 2.🍯 Is a cork denser or less dense than water? (a) denser than water (b) less dense than water
3. 3.🧺 Which of these is needed for the density tower? (a) turmeric powder (b) a magnet (c) a mirror (d) water with food colour
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 three liquids is the one thing we change. (a) False (b) True
5. 5.🛟 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
6. 6.🧺 Do we need water with food colour for the density tower? (a) needed (b) not needed
7. 7.🔍 Which is the odd one out? (a) a cork (b) a pebble (c) very salty water (d) a coin
8. 8.🧺 Which of these is not needed for the density tower? (a) honey (b) cooking oil (c) a tall clear glass (d) a mirror
9. 9.🧺 Which of these is not needed for the density tower? (a) a balloon (b) honey (c) a spoon (d) water with food colour
10. 10.🍯 Which of these is less dense than water? (a) air (b) a pebble (c) a coin (d) a glass marble
11. 11.⚖️ 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
12. 12.🔮 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
13. 13.🧺 Which of these is needed for the density tower? (a) a mirror (b) a balloon (c) a tall clear glass (d) a magnet
14. 14.🛟 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
15. 15.🍯 Is honey denser or less dense than water? (a) less dense than water (b) denser than water
16. 16.🧺 Do we need a mirror for the density tower? (a) needed (b) not needed
17. 17.⚖️ 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 measure it (b) we keep it the same (c) we change it
18. 18.🧺 Which of these is needed for the density tower? (a) a battery cell (b) a mirror (c) a balloon (d) honey
19. 19.⚖️ 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 pouring is what we measure. (a) False (b) True
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 same glass”? (a) we measure it (b) we keep it the same (c) we change it
21. 21.⚖️ 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
22. 22.⚖️ 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) True (b) False
23. 23.🍯 Which of these is denser than water? (a) cooking oil (b) a coin (c) a cork (d) a ping-pong ball
24. 24.True or false: air is less dense than water. (a) False (b) True
25. 25.🔍 Which is the odd one out? (a) honey (b) air (c) a coin (d) very salty water
26. 26.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a spoon (b) a magnet (c) cooking oil (d) a tall clear glass
27. 27.True or false: a coin is less dense than water. (a) False (b) True
28. 28.True or false: a mirror is needed for the density tower. (a) True (b) False
29. 29.🧺 Which of these is not needed for the density tower? (a) water with food colour (b) a magnet (c) a spoon (d) honey
30. 30.🍯 Which of these is denser than water? (a) cooking oil (b) a ping-pong ball (c) a glass marble (d) a cork
31. 31.⚖️ 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
32. 32.🧺 Which of these is not needed for the density tower? (a) a tall clear glass (b) honey (c) a spoon (d) yeast
33. 33.True or false: water with food colour is needed for the density tower. (a) True (b) False
34. 34.🧺 Which of these is needed for the density tower? (a) a magnet (b) turmeric powder (c) a balloon (d) cooking oil
35. 35.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) cooking oil (b) water with food colour (c) a spoon (d) yeast
36. 36.True or false: yeast is not needed for the density tower. (a) True (b) False
37. 37.🧺 Do we need a balloon for the density tower? (a) needed (b) not needed
38. 38.True or false: a ping-pong ball is denser than water. (a) False (b) True
39. 39.🍯 Which of these is denser than water? (a) a ping-pong ball (b) honey (c) an ice cube (d) air
40. 40.🔮 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

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