Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 406 · 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.🍯 Is air denser or less dense than water? (a) denser than water (b) less dense than water
2. 2.📘 What does “dense” mean? (a) heavy for its size (b) very thin (c) very hot (d) very colourful
3. 3.True or false: turmeric powder is needed for the density tower. (a) False (b) True
4. 4.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) on top of the oil (b) under the honey (c) in the water layer (d) in the honey layer
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: how much of each liquid is the one thing we change. (a) False (b) True
6. 6.True or false: a pebble is less dense than water. (a) True (b) False
7. 7.True or false: a magnet is needed for the density tower. (a) True (b) False
8. 8.⚖️ 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 keep it the same (c) we change it
9. 9.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they turn to honey (b) they mix for ever (c) they become solid (d) they separate again
10. 10.🛟 Why should we wipe up spilled oil at once? (a) oil attracts magnets (b) oil turns into honey (c) spilled oil is slippery (d) oil makes it rain
11. 11.🍯 Which of these is denser than water? (a) cooking oil (b) a cork (c) a coin (d) air
12. 12.🔮 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
13. 13.True or false: a spoon is not needed for the density tower. (a) False (b) True
14. 14.True or false: a glass marble is less dense than water. (a) False (b) True
15. 15.⚖️ 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 measure it (b) we keep it the same (c) we change it
16. 16.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a tall clear glass (b) a spoon (c) water with food colour (d) a magnet
17. 17.⚖️ 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
18. 18.True or false: a tall clear glass is needed for the density tower. (a) False (b) True
19. 19.🔍 Which layer is on top in the honey-water-oil tower? (a) coloured water (b) the spoon (c) cooking oil (d) honey
20. 20.🔍 Which is the odd one out? (a) very salty water (b) honey (c) a pebble (d) a ping-pong ball
21. 21.⚖️ 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) the order of pouring (c) how much of each liquid (d) the same glass
22. 22.🍯 Which of these is less dense than water? (a) cooking oil (b) very salty water (c) a coin (d) a glass marble
23. 23.🔍 Which is the odd one out? (a) very salty water (b) a coin (c) honey (d) air
24. 24.⚖️ 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 glass (c) the same three liquids (d) how much of each liquid
25. 25.🧺 Do we need water with food colour for the density tower? (a) not needed (b) needed
26. 26.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) honey (b) a tall clear glass (c) water with food colour (d) turmeric powder
27. 27.🧺 Which of these is not needed for the density tower? (a) a spoon (b) turmeric powder (c) a tall clear glass (d) honey
28. 28.🫗 Why does cooking oil float on top of water? (a) oil is hot (b) oil is less dense (c) oil is heavier (d) oil is sticky
29. 29.True or false: water with food colour is not needed for the density tower. (a) True (b) False
30. 30.🔍 Which is the odd one out? (a) a cork (b) an ice cube (c) honey (d) cooking oil
31. 31.⚖️ 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
32. 32.🧺 Which of these is not needed for the density tower? (a) a magnet (b) a tall clear glass (c) cooking oil (d) honey
33. 33.🍯 Why does honey sink to the bottom of the glass? (a) it is the coldest (b) it is yellow (c) it is the densest (d) it is the stickiest
34. 34.🍯 Is a glass marble denser or less dense than water? (a) denser than water (b) less dense than water
35. 35.🍯 Is a ping-pong ball denser or less dense than water? (a) denser than water (b) less dense than water
36. 36.⚖️ 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 change it (c) we keep it the same
37. 37.🧺 Which of these is needed for the density tower? (a) cooking oil (b) a battery cell (c) a mirror (d) a balloon
38. 38.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a battery cell (b) honey (c) a spoon (d) water with food colour
39. 39.🍯 Is cooking oil denser or less dense than water? (a) less dense than water (b) denser than water
40. 40.True or false: a battery cell is not needed for the density tower. (a) False (b) True

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