Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 155 · 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.🔍 What do you see after pouring honey, water and oil into one glass? (a) one mixed colour (b) the glass gets hot (c) bubbles of gas (d) three separate layers
2. 2.True or false: a cork is less dense than water. (a) False (b) True
3. 3.🫗 Why does cooking oil float on top of water? (a) oil is hot (b) oil is sticky (c) oil is heavier (d) oil is less dense
4. 4.⚖️ 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 glass is the one thing we change. (a) False (b) True
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 the layers is what we measure. (a) True (b) False
6. 6.🔍 Which is the odd one out? (a) air (b) a glass marble (c) very salty water (d) honey
7. 7.⚖️ 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
8. 8.🧺 Which of these is not needed for the density tower? (a) a spoon (b) honey (c) water with food colour (d) a balloon
9. 9.⚖️ 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) False (b) True
10. 10.True or false: a magnet is not needed for the density tower. (a) True (b) False
11. 11.🧺 Which of these is needed for the density tower? (a) a spoon (b) a magnet (c) yeast (d) turmeric powder
12. 12.🍯 Which of these is less dense than water? (a) a coin (b) honey (c) a pebble (d) cooking oil
13. 13.True or false: a mirror is not needed for the density tower. (a) True (b) False
14. 14.🧺 Which of these is needed for the density tower? (a) a magnet (b) a battery cell (c) a tall clear glass (d) turmeric powder
15. 15.True or false: honey is denser than water. (a) True (b) False
16. 16.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a spoon (b) a balloon (c) cooking oil (d) a tall clear glass
17. 17.True or false: an ice cube is less dense than water. (a) True (b) False
18. 18.⚖️ 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 order of pouring (b) the same glass (c) the same three liquids (d) the order of the layers
19. 19.🔍 Which is the odd one out? (a) a ping-pong ball (b) a cork (c) an ice cube (d) a glass marble
20. 20.🧺 Which of these is not needed for the density tower? (a) a tall clear glass (b) water with food colour (c) honey (d) turmeric powder
21. 21.🍯 Which of these is less dense than water? (a) a cork (b) a coin (c) very salty water (d) honey
22. 22.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) cooking oil (b) water with food colour (c) a tall clear glass (d) yeast
23. 23.⚖️ 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 three liquids (c) the order of pouring (d) how much of each liquid
24. 24.True or false: cooking oil is not needed for the density tower. (a) True (b) False
25. 25.True or false: air is denser than water. (a) True (b) False
26. 26.True or false: cooking oil is needed for the density tower. (a) True (b) False
27. 27.📘 What does “dense” mean? (a) very hot (b) very thin (c) very colourful (d) heavy for its size
28. 28.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) under the honey (b) on top of the oil (c) in the water layer (d) in the honey layer
29. 29.True or false: a spoon is not needed for the density tower. (a) True (b) False
30. 30.🧺 Do we need cooking oil for the density tower? (a) not needed (b) needed
31. 31.🔮 Predict: you gently drop a coin into the tower. Where does it end up? (a) in the water layer (b) in the oil layer (c) on top of the oil (d) at the very bottom
32. 32.🔍 Which is the odd one out? (a) very salty water (b) a cork (c) a pebble (d) a coin
33. 33.🛟 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
34. 34.🍯 Is a glass marble denser or less dense than water? (a) denser than water (b) less dense than water
35. 35.🧺 Which of these is needed for the density tower? (a) a balloon (b) a battery cell (c) honey (d) turmeric powder
36. 36.🔮 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 mix for ever (d) they become solid
37. 37.⚖️ 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 measure it (b) we keep it the same (c) we change it
38. 38.⚖️ 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 measure it (b) we change it (c) we keep it the same
39. 39.🍯 Which of these is less dense than water? (a) an ice cube (b) very salty water (c) a coin (d) honey
40. 40.🧺 Which of these is needed for the density tower? (a) turmeric powder (b) water with food colour (c) a magnet (d) a balloon

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