Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 343 · 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 shake oil and water hard in a closed bottle and wait. What happens? (a) they mix for ever (b) they become solid (c) they separate again (d) they turn to honey
2. 2.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) under the honey (b) in the water layer (c) on top of the oil (d) in the honey layer
3. 3.🍯 Is an ice cube denser or less dense than water? (a) denser than water (b) less dense than water
4. 4.🧺 Which of these is not needed for the density tower? (a) a magnet (b) water with food colour (c) cooking oil (d) honey
5. 5.🍯 Is a coin denser or less dense than water? (a) denser than water (b) less dense than water
6. 6.🛟 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
7. 7.🔍 Which layer is on top in the honey-water-oil tower? (a) cooking oil (b) the spoon (c) coloured water (d) honey
8. 8.True or false: a cork is denser than water. (a) True (b) False
9. 9.True or false: cooking oil is not needed for the density tower. (a) False (b) True
10. 10.True or false: a mirror is needed for the density tower. (a) True (b) False
11. 11.🍯 Is cooking oil denser or less dense than water? (a) denser than water (b) less dense than water
12. 12.True or false: water with food colour is not needed for the density tower. (a) True (b) False
13. 13.🧺 Which of these is needed for the density tower? (a) yeast (b) honey (c) a balloon (d) turmeric powder
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 order of the layers (b) the same three liquids (c) the order of pouring
15. 15.🍯 Which of these is denser than water? (a) cooking oil (b) a cork (c) a ping-pong ball (d) a glass marble
16. 16.🧺 Which of these is not needed for the density tower? (a) a tall clear glass (b) water with food colour (c) a balloon (d) cooking oil
17. 17.🍯 Is a ping-pong ball denser or less dense than water? (a) denser than water (b) less dense than water
18. 18.⚖️ 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
19. 19.🧺 Which of these is needed for the density tower? (a) a battery cell (b) water with food colour (c) a balloon (d) a magnet
20. 20.True or false: a tall clear glass is not needed for the density tower. (a) False (b) True
21. 21.🧺 Which of these is not needed for the density tower? (a) water with food colour (b) yeast (c) cooking oil (d) honey
22. 22.⚖️ 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 measure it (b) we keep it the same (c) we change it
23. 23.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a spoon (b) cooking oil (c) a mirror (d) honey
24. 24.🧺 Which of these is not needed for the density tower? (a) honey (b) water with food colour (c) cooking oil (d) turmeric powder
25. 25.🧺 Which of these is needed for the density tower? (a) a magnet (b) yeast (c) turmeric powder (d) a tall clear glass
26. 26.True or false: very salty water is less dense than water. (a) False (b) True
27. 27.⚖️ 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
28. 28.True or false: a ping-pong ball is less dense than water. (a) False (b) True
29. 29.⚖️ 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 order of the layers (d) the same glass
30. 30.🔍 What do you see after pouring honey, water and oil into one glass? (a) bubbles of gas (b) one mixed colour (c) the glass gets hot (d) three separate layers
31. 31.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a tall clear glass (b) cooking oil (c) a battery cell (d) honey
32. 32.🍯 Which of these is less dense than water? (a) honey (b) a pebble (c) very salty water (d) a cork
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 kept the same. (a) False (b) True
34. 34.🛟 Which rule keeps the density tower experiment safe? (a) pour it on the floor (b) taste each layer (c) throw the glass (d) do not lick the spoon
35. 35.⚖️ 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 the layers (b) the same three liquids (c) the order of pouring (d) the same glass
36. 36.🫗 Why does cooking oil float on top of water? (a) oil is hot (b) oil is heavier (c) oil is sticky (d) oil is less dense
37. 37.📘 What does “dense” mean? (a) heavy for its size (b) very thin (c) very colourful (d) very hot
38. 38.True or false: a mirror is not needed for the density tower. (a) True (b) False
39. 39.🍯 Why does honey sink to the bottom of the glass? (a) it is the coldest (b) it is yellow (c) it is the stickiest (d) it is the densest
40. 40.🔍 Which is the odd one out? (a) very salty water (b) air (c) honey (d) a glass marble

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