Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 638 · 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) on top of the oil (b) in the honey layer (c) under the honey (d) in the water layer
2. 2.🍯 Is honey denser or less dense than water? (a) denser than water (b) less dense than water
3. 3.🫗 Why does cooking oil float on top of water? (a) oil is less dense (b) oil is sticky (c) oil is hot (d) oil is heavier
4. 4.True or false: a cork is less dense than water. (a) True (b) False
5. 5.⚖️ 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
6. 6.🧺 Which of these is needed for the density tower? (a) a magnet (b) a battery cell (c) a tall clear glass (d) a mirror
7. 7.🛟 Which rule keeps the density tower experiment safe? (a) do not lick the spoon (b) taste each layer (c) throw the glass (d) pour it on the floor
8. 8.🧺 Do we need a balloon for the density tower? (a) not needed (b) needed
9. 9.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a spoon (b) cooking oil (c) yeast (d) honey
10. 10.🔍 Which is the odd one out? (a) an ice cube (b) a ping-pong ball (c) cooking oil (d) a glass marble
11. 11.🧺 Which of these is not needed for the density tower? (a) honey (b) a tall clear glass (c) a balloon (d) water with food colour
12. 12.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a tall clear glass (b) water with food colour (c) cooking oil (d) turmeric powder
13. 13.📘 What does “dense” mean? (a) very thin (b) heavy for its size (c) very hot (d) very colourful
14. 14.🍯 Which of these is less dense than water? (a) a cork (b) very salty water (c) honey (d) a glass marble
15. 15.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a balloon (b) water with food colour (c) honey (d) a spoon
16. 16.🧺 Do we need a tall clear glass for the density tower? (a) not needed (b) needed
17. 17.⚖️ 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
18. 18.🧺 Which of these is needed for the density tower? (a) yeast (b) turmeric powder (c) a battery cell (d) cooking oil
19. 19.🧺 Which of these is not needed for the density tower? (a) water with food colour (b) a tall clear glass (c) cooking oil (d) a magnet
20. 20.True or false: an ice cube is less dense than water. (a) True (b) False
21. 21.🧺 Do we need a mirror for the density tower? (a) needed (b) not needed
22. 22.True or false: a glass marble is denser than water. (a) False (b) True
23. 23.🍯 Is an ice cube denser or less dense than water? (a) denser than water (b) less dense than water
24. 24.🔍 Which is the odd one out? (a) a ping-pong ball (b) a coin (c) a pebble (d) honey
25. 25.⚖️ 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) the order of the layers (c) the same three liquids
26. 26.🔍 Which is the odd one out? (a) very salty water (b) a coin (c) a glass marble (d) a cork
27. 27.True or false: a balloon is not needed for the density tower. (a) True (b) False
28. 28.🔮 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 water layer (d) in the oil layer
29. 29.🍯 Which of these is denser than water? (a) air (b) a ping-pong ball (c) a cork (d) a glass marble
30. 30.True or false: very salty water is denser than water. (a) True (b) False
31. 31.True or false: cooking oil is needed for the density tower. (a) True (b) False
32. 32.True or false: a tall clear glass is not needed for the density tower. (a) False (b) True
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) True (b) False
34. 34.🧺 Which of these is not needed for the density tower? (a) turmeric powder (b) water with food colour (c) cooking oil (d) honey
35. 35.True or false: honey is denser than water. (a) False (b) True
36. 36.True or false: a magnet is not needed for the density tower. (a) False (b) True
37. 37.🛟 Why should we wipe up spilled oil at once? (a) oil turns into honey (b) oil makes it rain (c) oil attracts magnets (d) spilled oil is slippery
38. 38.🍯 Which of these is less dense than water? (a) cooking oil (b) a pebble (c) a coin (d) honey
39. 39.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they separate again (b) they turn to honey (c) they become solid (d) they mix for ever
40. 40.True or false: cooking oil is denser than water. (a) True (b) False

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