Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 633 · 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.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) in the honey layer (b) in the water layer (c) on top of the oil (d) under the honey
2. 2.True or false: a battery cell is not needed for the density tower. (a) True (b) False
3. 3.⚖️ 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) False (b) True
4. 4.🛟 Why should we wipe up spilled oil at once? (a) oil turns into honey (b) spilled oil is slippery (c) oil attracts magnets (d) oil makes it rain
5. 5.🧺 Do we need water with food colour for the density tower? (a) not needed (b) needed
6. 6.True or false: a magnet is needed for the density tower. (a) True (b) False
7. 7.True or false: yeast is not needed for the density tower. (a) False (b) True
8. 8.🔍 Which layer is on top in the honey-water-oil tower? (a) coloured water (b) honey (c) cooking oil (d) the spoon
9. 9.True or false: an ice cube is less dense than water. (a) True (b) False
10. 10.🍯 Which of these is less dense than water? (a) a glass marble (b) very salty water (c) cooking oil (d) a coin
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 three liquids is the one thing we change. (a) True (b) False
12. 12.True or false: cooking oil is not needed for the density tower. (a) True (b) False
13. 13.🍯 Is an ice cube 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? Which of these is kept the same? (a) the same three liquids (b) the order of the layers (c) the order of pouring
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) how much of each liquid (b) the order of pouring (c) the same glass (d) the same three liquids
16. 16.🫗 Why does cooking oil float on top of water? (a) oil is heavier (b) oil is hot (c) oil is sticky (d) oil is less dense
17. 17.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a spoon (b) cooking oil (c) a tall clear glass (d) yeast
18. 18.🍯 Which of these is denser than water? (a) cooking oil (b) an ice cube (c) a ping-pong ball (d) a glass marble
19. 19.🛟 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
20. 20.True or false: a tall clear glass is needed for the density tower. (a) False (b) True
21. 21.🍯 Which of these is less dense than water? (a) a cork (b) very salty water (c) honey (d) a glass marble
22. 22.🍯 Is a pebble denser or less dense than water? (a) less dense than water (b) denser than water
23. 23.🍯 Is very salty water denser or less dense than water? (a) denser than water (b) less dense than water
24. 24.🍯 Is honey denser or less dense than water? (a) less dense than water (b) denser than water
25. 25.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) cooking oil (b) a battery cell (c) a tall clear glass (d) honey
26. 26.⚖️ 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
27. 27.🧺 Do we need honey for the density tower? (a) not needed (b) needed
28. 28.🍯 Which of these is less dense than water? (a) a glass marble (b) a pebble (c) a ping-pong ball (d) honey
29. 29.True or false: a ping-pong ball is denser than water. (a) True (b) False
30. 30.True or false: a glass marble is denser than water. (a) False (b) True
31. 31.True or false: a mirror is not needed for the density tower. (a) True (b) False
32. 32.🍯 Why does honey sink to the bottom of the glass? (a) it is yellow (b) it is the coldest (c) it is the densest (d) it is the stickiest
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 the layers is the one thing we change. (a) True (b) False
34. 34.🔮 Predict: you gently drop a coin into the tower. Where does it end up? (a) on top of the oil (b) at the very bottom (c) in the oil layer (d) in the water layer
35. 35.🧺 Do we need a tall clear glass for the density tower? (a) needed (b) not needed
36. 36.True or false: a cork is denser than water. (a) True (b) False
37. 37.🔍 Which is the odd one out? (a) very salty water (b) a coin (c) a pebble (d) air
38. 38.⚖️ 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 keep it the same (b) we change it (c) we measure it
39. 39.🔍 Which is the odd one out? (a) cooking oil (b) a glass marble (c) very salty water (d) honey
40. 40.🧺 Which of these is not needed for the density tower? (a) a tall clear glass (b) a spoon (c) a balloon (d) cooking oil

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