Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 107 · 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.🍯 Is an ice cube denser or less dense than water? (a) denser than water (b) less dense than water
2. 2.🔍 Which is the odd one out? (a) an ice cube (b) a cork (c) cooking oil (d) honey
3. 3.🔍 Which layer is on top in the honey-water-oil tower? (a) coloured water (b) the spoon (c) cooking oil (d) honey
4. 4.📘 What does “dense” mean? (a) very hot (b) very colourful (c) heavy for its size (d) very thin
5. 5.⚖️ 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 same three liquids (c) the order of pouring (d) the order of the layers
6. 6.True or false: an ice cube is less dense than water. (a) False (b) True
7. 7.🧺 Do we need a tall clear glass for the density tower? (a) not needed (b) needed
8. 8.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) cooking oil (b) a battery cell (c) honey (d) water with food colour
9. 9.True or false: cooking oil is less dense than water. (a) True (b) False
10. 10.⚖️ 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 keep it the same (b) we measure it (c) we change it
11. 11.⚖️ 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
12. 12.🧺 Which of these is not needed for the density tower? (a) turmeric powder (b) cooking oil (c) water with food colour (d) a spoon
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 “the order of pouring”? (a) we keep it the same (b) we measure it (c) we change it
14. 14.🧺 Do we need yeast for the density tower? (a) needed (b) not needed
15. 15.🧺 Do we need a balloon for the density tower? (a) needed (b) not needed
16. 16.True or false: a tall clear glass is needed for the density tower. (a) False (b) True
17. 17.🍯 Which of these is less dense than water? (a) a coin (b) a pebble (c) honey (d) air
18. 18.🧺 Do we need cooking oil for the density tower? (a) needed (b) not needed
19. 19.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they separate again (b) they become solid (c) they turn to honey (d) they mix for ever
20. 20.🧺 Do we need water with food colour for the density tower? (a) needed (b) not needed
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 “the same three liquids”? (a) we measure it (b) we change it (c) we keep it the same
22. 22.🍯 Which of these is less dense than water? (a) a glass marble (b) a coin (c) cooking oil (d) a pebble
23. 23.🍯 Is a cork denser or less dense than water? (a) denser than water (b) less dense than water
24. 24.🧺 Which of these is needed for the density tower? (a) a tall clear glass (b) a balloon (c) yeast (d) a battery cell
25. 25.🫗 Why does cooking oil float on top of water? (a) oil is less dense (b) oil is sticky (c) oil is heavier (d) oil is hot
26. 26.⚖️ 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 same three liquids (b) how much of each liquid (c) the order of the layers (d) the same glass
27. 27.True or false: a mirror is not needed for the density tower. (a) False (b) True
28. 28.🔮 Predict: you gently drop a coin into the tower. Where does it end up? (a) in the water layer (b) at the very bottom (c) on top of the oil (d) in the oil layer
29. 29.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) water with food colour (b) a spoon (c) a magnet (d) a tall clear glass
30. 30.🍯 Which of these is denser than water? (a) a ping-pong ball (b) air (c) a cork (d) a glass marble
31. 31.True or false: cooking oil is needed for the density tower. (a) True (b) False
32. 32.🛟 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
33. 33.⚖️ 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 the one thing we change. (a) True (b) False
34. 34.🍯 Is a ping-pong ball denser or less dense than water? (a) less dense than water (b) denser than water
35. 35.🧺 Which of these is needed for the density tower? (a) honey (b) a mirror (c) turmeric powder (d) a balloon
36. 36.True or false: an ice cube is denser than water. (a) False (b) True
37. 37.🛟 Why should we wipe up spilled oil at once? (a) oil attracts magnets (b) oil makes it rain (c) spilled oil is slippery (d) oil turns into honey
38. 38.🍯 Which of these is less dense than water? (a) very salty water (b) honey (c) a coin (d) an ice cube
39. 39.🧺 Do we need a mirror for the density tower? (a) needed (b) not needed
40. 40.True or false: honey is not needed for the density tower. (a) True (b) False

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