Density Tower Experiment Worksheet

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

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