Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 877 · 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 heavier (d) oil is sticky
2. 2.🛟 Which rule keeps the density tower experiment safe? (a) pour it on the floor (b) throw the glass (c) taste each layer (d) do not lick the spoon
3. 3.⚖️ 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
4. 4.⚖️ 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 change it (c) we measure it
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 order of the layers (b) the order of pouring (c) the same glass (d) how much of each liquid
6. 6.⚖️ 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 what we measure. (a) True (b) False
7. 7.🧺 Which of these is not needed for the density tower? (a) a spoon (b) cooking oil (c) water with food colour (d) yeast
8. 8.🔍 Which is the odd one out? (a) a ping-pong ball (b) honey (c) air (d) cooking oil
9. 9.🧺 Do we need a battery cell for the density tower? (a) not needed (b) needed
10. 10.⚖️ 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
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 what we measure. (a) True (b) False
12. 12.🍯 Is air denser or less dense than water? (a) less dense than water (b) denser than water
13. 13.True or false: honey is less dense than water. (a) True (b) False
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.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? True or false: how much of each liquid is kept the same. (a) True (b) False
16. 16.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a mirror (b) honey (c) a tall clear glass (d) water with food colour
17. 17.🧺 Do we need turmeric powder for the density tower? (a) not needed (b) needed
18. 18.🧺 Which of these is needed for the density tower? (a) turmeric powder (b) a magnet (c) a mirror (d) water with food colour
19. 19.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) water with food colour (b) a tall clear glass (c) cooking oil (d) a battery cell
20. 20.🍯 Is cooking oil denser or less dense than water? (a) less dense than water (b) denser than water
21. 21.⚖️ 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) how much of each liquid (b) the same glass (c) the order of the layers (d) the order of pouring
22. 22.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) yeast (b) cooking oil (c) honey (d) water with food colour
23. 23.🔮 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) at the very bottom (d) in the water layer
24. 24.⚖️ 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
25. 25.True or false: a mirror is not needed for the density tower. (a) False (b) True
26. 26.🧺 Which of these is not needed for the density tower? (a) a magnet (b) cooking oil (c) a spoon (d) water with food colour
27. 27.🔍 Which layer is on top in the honey-water-oil tower? (a) the spoon (b) coloured water (c) honey (d) cooking oil
28. 28.True or false: cooking oil is not needed for the density tower. (a) True (b) False
29. 29.True or false: a battery cell is not needed for the density tower. (a) False (b) True
30. 30.True or false: very salty water is denser than water. (a) True (b) False
31. 31.🧺 Do we need water with food colour for the density tower? (a) needed (b) not needed
32. 32.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) in the honey layer (b) on top of the oil (c) in the water layer (d) under the honey
33. 33.True or false: air is denser than water. (a) True (b) False
34. 34.🍯 Is a cork denser or less dense than water? (a) less dense than water (b) denser than water
35. 35.⚖️ 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 measure it (c) we change it
36. 36.True or false: an ice cube is less dense than water. (a) False (b) True
37. 37.🔍 Which is the odd one out? (a) an ice cube (b) a pebble (c) honey (d) very salty water
38. 38.True or false: an ice cube is denser than water. (a) True (b) False
39. 39.⚖️ 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) False (b) True
40. 40.True or false: a pebble is less dense than water. (a) True (b) False

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