Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 679 · 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 sticky (b) oil is hot (c) oil is less dense (d) oil is heavier
2. 2.🍯 Is a coin denser or less dense than water? (a) less dense than water (b) denser than water
3. 3.🧺 Which of these is needed for the density tower? (a) turmeric powder (b) honey (c) yeast (d) a battery cell
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 measure it (c) we change it
5. 5.True or false: air is denser than water. (a) False (b) True
6. 6.🔍 Which is the odd one out? (a) an ice cube (b) cooking oil (c) a ping-pong ball (d) a glass marble
7. 7.🧺 Do we need water with food colour for the density tower? (a) not needed (b) needed
8. 8.⚖️ 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
9. 9.📘 What does “dense” mean? (a) very hot (b) very thin (c) heavy for its size (d) very colourful
10. 10.🧺 Which of these is needed for the density tower? (a) cooking oil (b) a balloon (c) turmeric powder (d) a battery cell
11. 11.🔍 Which layer is on top in the honey-water-oil tower? (a) coloured water (b) the spoon (c) honey (d) cooking oil
12. 12.🍯 Is a cork denser or less dense than water? (a) denser than water (b) less dense than water
13. 13.⚖️ 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 pouring (b) how much of each liquid (c) the order of the layers
14. 14.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they mix for ever (b) they separate again (c) they become solid (d) they turn to honey
15. 15.True or false: a tall clear glass is not needed for the density tower. (a) True (b) False
16. 16.True or false: a spoon is needed for the density tower. (a) False (b) True
17. 17.True or false: cooking oil is less dense than water. (a) True (b) False
18. 18.🔍 Which is the odd one out? (a) a pebble (b) a coin (c) air (d) very salty water
19. 19.🔮 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
20. 20.🧺 Which of these is needed for the density tower? (a) a mirror (b) yeast (c) a tall clear glass (d) a magnet
21. 21.🍯 Is cooking oil denser or less dense than water? (a) denser than water (b) less dense than water
22. 22.⚖️ 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) False (b) True
23. 23.True or false: a mirror is needed for the density tower. (a) True (b) False
24. 24.🛟 Why should we wipe up spilled oil at once? (a) oil attracts magnets (b) spilled oil is slippery (c) oil turns into honey (d) oil makes it rain
25. 25.True or false: a pebble is denser than water. (a) True (b) False
26. 26.True or false: an ice cube is denser than water. (a) True (b) False
27. 27.🍯 Is a glass marble denser or less dense than water? (a) denser than water (b) less dense than water
28. 28.🍯 Is very salty water denser or less dense than water? (a) less dense than water (b) denser than water
29. 29.True or false: a balloon is needed for the density tower. (a) False (b) True
30. 30.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) cooking oil (b) a spoon (c) a tall clear glass (d) a mirror
31. 31.🔍 Which is the odd one out? (a) a pebble (b) very salty water (c) a coin (d) a cork
32. 32.🧺 Which of these is needed for the density tower? (a) a balloon (b) turmeric powder (c) water with food colour (d) a mirror
33. 33.🛟 Which rule keeps the density tower experiment safe? (a) throw the glass (b) taste each layer (c) do not lick the spoon (d) pour it on the floor
34. 34.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a tall clear glass (b) honey (c) water with food colour (d) a balloon
35. 35.🍯 Which of these is less dense than water? (a) a glass marble (b) honey (c) an ice cube (d) very salty water
36. 36.🍯 Is a ping-pong ball denser or less dense than water? (a) less dense than water (b) denser than water
37. 37.True or false: a cork is denser than water. (a) False (b) True
38. 38.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) in the honey layer (b) under the honey (c) in the water layer (d) on top of the oil
39. 39.🍯 Is air denser or less dense than water? (a) denser than water (b) less dense than water
40. 40.🍯 Why does honey sink to the bottom of the glass? (a) it is the stickiest (b) it is the densest (c) it is yellow (d) it is the coldest

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