Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 761 · 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.True or false: a coin is less dense than water. (a) True (b) False
2. 2.⚖️ 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 order of pouring (b) how much of each liquid (c) the same glass (d) the same three liquids
3. 3.🫗 Why does cooking oil float on top of water? (a) oil is less dense (b) oil is hot (c) oil is sticky (d) oil is heavier
4. 4.🔍 Which is the odd one out? (a) a ping-pong ball (b) very salty water (c) a coin (d) a glass marble
5. 5.🧺 Which of these is needed for the density tower? (a) a tall clear glass (b) yeast (c) a battery cell (d) turmeric powder
6. 6.True or false: a tall clear glass is needed for the density tower. (a) False (b) True
7. 7.True or false: yeast is needed for the density tower. (a) True (b) False
8. 8.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) under the honey (b) in the honey layer (c) on top of the oil (d) in the water layer
9. 9.⚖️ 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 measure it (c) we keep it the same
10. 10.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they become solid (b) they turn to honey (c) they mix for ever (d) they separate again
11. 11.True or false: honey is less dense than water. (a) True (b) False
12. 12.⚖️ 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 measure it (c) we change it
13. 13.🛟 Why should we wipe up spilled oil at once? (a) oil makes it rain (b) oil turns into honey (c) oil attracts magnets (d) spilled oil is slippery
14. 14.True or false: a battery cell is needed for the density tower. (a) False (b) True
15. 15.True or false: turmeric powder is needed for the density tower. (a) False (b) True
16. 16.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a spoon (b) water with food colour (c) a balloon (d) a tall clear glass
17. 17.⚖️ 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 the layers (b) the order of pouring (c) how much of each liquid
18. 18.🧺 Do we need a spoon for the density tower? (a) not needed (b) needed
19. 19.True or false: air is less dense than water. (a) True (b) False
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 three liquids”? (a) we change it (b) we measure it (c) we keep it the same
21. 21.True or false: a balloon is not needed for the density tower. (a) True (b) False
22. 22.True or false: turmeric powder is not needed for the density tower. (a) False (b) True
23. 23.🍯 Which of these is less dense than water? (a) very salty water (b) honey (c) a glass marble (d) air
24. 24.🛟 Which rule keeps the density tower experiment safe? (a) do not lick the spoon (b) pour it on the floor (c) throw the glass (d) taste each layer
25. 25.🧺 Do we need a mirror for the density tower? (a) not needed (b) needed
26. 26.⚖️ 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
27. 27.⚖️ 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 the layers (b) the same three liquids (c) the order of pouring
28. 28.🔍 Which is the odd one out? (a) very salty water (b) a cork (c) an ice cube (d) cooking oil
29. 29.True or false: honey is denser than water. (a) True (b) False
30. 30.⚖️ 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) True (b) False
31. 31.🔍 Which layer is on top in the honey-water-oil tower? (a) cooking oil (b) honey (c) the spoon (d) coloured water
32. 32.⚖️ 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) how much of each liquid (c) the same glass (d) the order of the layers
33. 33.🍯 Is air denser or less dense than water? (a) less dense than water (b) denser than water
34. 34.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) honey (b) a tall clear glass (c) turmeric powder (d) cooking oil
35. 35.🧺 Do we need water with food colour for the density tower? (a) not needed (b) needed
36. 36.🧺 Which of these is needed for the density tower? (a) a mirror (b) a battery cell (c) water with food colour (d) a magnet
37. 37.True or false: a pebble is denser than water. (a) True (b) False
38. 38.🧺 Which of these is not needed for the density tower? (a) a spoon (b) water with food colour (c) a mirror (d) honey
39. 39.🍯 Why does honey sink to the bottom of the glass? (a) it is the densest (b) it is the stickiest (c) it is the coldest (d) it is yellow
40. 40.🧺 Do we need yeast for the density tower? (a) not needed (b) needed

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