Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 122 · 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 turn to honey (c) they become solid (d) they separate again
2. 2.True or false: water with food colour is needed for the density tower. (a) False (b) True
3. 3.🔍 Which is the odd one out? (a) an ice cube (b) very salty water (c) a glass marble (d) a coin
4. 4.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a spoon (b) cooking oil (c) honey (d) a magnet
5. 5.🍯 Which of these is less dense than water? (a) a glass marble (b) cooking oil (c) a pebble (d) a coin
6. 6.True or false: turmeric powder is needed for the density tower. (a) True (b) False
7. 7.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a balloon (b) cooking oil (c) honey (d) water with food colour
8. 8.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) honey (b) cooking oil (c) a battery cell (d) water with food colour
9. 9.🔮 Predict: you gently drop a coin into the tower. Where does it end up? (a) in the oil layer (b) on top of the oil (c) at the very bottom (d) in the water layer
10. 10.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) turmeric powder (b) honey (c) cooking oil (d) water with food colour
11. 11.True or false: air is less dense than water. (a) True (b) False
12. 12.🛟 Why should we wipe up spilled oil at once? (a) oil attracts magnets (b) oil makes it rain (c) spilled oil is slippery (d) oil turns into honey
13. 13.🧺 Do we need a mirror for the density tower? (a) needed (b) not needed
14. 14.🧺 Do we need yeast for the density tower? (a) not needed (b) needed
15. 15.🧺 Do we need turmeric powder for the density tower? (a) not needed (b) needed
16. 16.🔍 Which is the odd one out? (a) a cork (b) a ping-pong ball (c) cooking oil (d) very salty water
17. 17.🧺 Do we need a balloon for the density tower? (a) needed (b) not needed
18. 18.🧺 Do we need a tall clear glass for the density tower? (a) needed (b) not needed
19. 19.True or false: a cork is less dense than water. (a) True (b) False
20. 20.🍯 Is honey denser or less dense than water? (a) less dense than water (b) denser than water
21. 21.🧺 Which of these is needed for the density tower? (a) a magnet (b) water with food colour (c) a balloon (d) yeast
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 pouring”? (a) we keep it the same (b) we change it (c) we measure it
23. 23.⚖️ 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 measure it (b) we change it (c) we keep it the same
24. 24.⚖️ 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 keep it the same (b) we measure it (c) we change it
25. 25.True or false: a balloon is not needed for the density tower. (a) False (b) True
26. 26.⚖️ 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 kept the same. (a) True (b) False
27. 27.True or false: a spoon is not needed for the density tower. (a) False (b) True
28. 28.⚖️ 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 what we measure. (a) True (b) False
29. 29.🍯 Is a ping-pong ball denser or less dense than water? (a) denser than water (b) less dense than water
30. 30.🧺 Do we need water with food colour for the density tower? (a) not needed (b) needed
31. 31.🍯 Which of these is denser than water? (a) air (b) a glass marble (c) a cork (d) an ice cube
32. 32.🍯 Is a pebble denser or less dense than water? (a) denser than water (b) less dense than water
33. 33.📘 What does “dense” mean? (a) very thin (b) very hot (c) heavy for its size (d) very colourful
34. 34.🧺 Which of these is needed for the density tower? (a) a magnet (b) a balloon (c) a battery cell (d) a tall clear glass
35. 35.🧺 Which of these is not needed for the density tower? (a) honey (b) water with food colour (c) a tall clear glass (d) a magnet
36. 36.🍯 Is cooking oil denser or less dense than water? (a) denser than water (b) less dense than water
37. 37.🫗 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
38. 38.🍯 Is a cork denser or less dense than water? (a) less dense than water (b) denser than water
39. 39.⚖️ 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 same three liquids (b) how much of each liquid (c) the same glass (d) the order of pouring
40. 40.🍯 Is air denser or less dense than water? (a) less dense than water (b) denser than water

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