Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 240 · 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 is the odd one out? (a) a ping-pong ball (b) very salty water (c) cooking oil (d) an ice cube
2. 2.🍯 Is a ping-pong ball denser or less dense than water? (a) less dense than water (b) denser than water
3. 3.🍯 Which of these is denser than water? (a) a cork (b) an ice cube (c) a pebble (d) air
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 order of pouring is the one thing we change. (a) False (b) True
5. 5.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) under the honey (b) in the honey layer (c) in the water layer (d) on top of the oil
6. 6.⚖️ 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) how much of each liquid
7. 7.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a tall clear glass (b) turmeric powder (c) water with food colour (d) cooking oil
8. 8.🧺 Do we need a battery cell for the density tower? (a) needed (b) not needed
9. 9.🔮 Predict: you gently drop a coin into the tower. Where does it end up? (a) on top of the oil (b) in the oil layer (c) in the water layer (d) at the very bottom
10. 10.⚖️ 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
11. 11.⚖️ 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 change it (b) we measure it (c) we keep it the same
12. 12.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they become solid (b) they separate again (c) they turn to honey (d) they mix for ever
13. 13.True or false: a battery cell is needed for the density tower. (a) False (b) True
14. 14.🔍 Which layer is on top in the honey-water-oil tower? (a) the spoon (b) coloured water (c) cooking oil (d) honey
15. 15.🫗 Why does cooking oil float on top of water? (a) oil is less dense (b) oil is hot (c) oil is heavier (d) oil is sticky
16. 16.🍯 Which of these is less dense than water? (a) honey (b) a pebble (c) air (d) a glass marble
17. 17.⚖️ 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
18. 18.True or false: a battery cell is not needed for the density tower. (a) True (b) False
19. 19.🧺 Do we need turmeric powder for the density tower? (a) not needed (b) needed
20. 20.🧺 Which of these is not needed for the density tower? (a) a tall clear glass (b) cooking oil (c) a battery cell (d) honey
21. 21.🍯 Which of these is less dense than water? (a) a glass marble (b) a pebble (c) honey (d) a cork
22. 22.🍯 Which of these is denser than water? (a) honey (b) a cork (c) cooking oil (d) an ice cube
23. 23.🧺 Do we need a mirror for the density tower? (a) not needed (b) needed
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 the one thing we change? (a) the order of the layers (b) the same three liquids (c) the order of pouring (d) the same glass
25. 25.True or false: yeast is needed for the density tower. (a) True (b) False
26. 26.🔍 Which is the odd one out? (a) air (b) cooking oil (c) a coin (d) a cork
27. 27.True or false: a tall clear glass is not needed for the density tower. (a) True (b) False
28. 28.True or false: a coin is less dense than water. (a) True (b) False
29. 29.🔍 Which is the odd one out? (a) a glass marble (b) a ping-pong ball (c) a pebble (d) honey
30. 30.🛟 Why should we wipe up spilled oil at once? (a) oil attracts magnets (b) spilled oil is slippery (c) oil turns into honey (d) oil makes it rain
31. 31.🔍 Which is the odd one out? (a) a glass marble (b) air (c) a pebble (d) honey
32. 32.🧺 Which of these is not needed for the density tower? (a) a tall clear glass (b) honey (c) water with food colour (d) a mirror
33. 33.🧺 Do we need a tall clear glass for the density tower? (a) needed (b) not needed
34. 34.True or false: cooking oil is denser than water. (a) True (b) False
35. 35.True or false: a pebble is denser than water. (a) False (b) True
36. 36.⚖️ 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 kept the same. (a) False (b) True
37. 37.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) honey (b) a spoon (c) a tall clear glass (d) a balloon
38. 38.🔍 Which is the odd one out? (a) very salty water (b) honey (c) cooking oil (d) a glass marble
39. 39.🍯 Why does honey sink to the bottom of the glass? (a) it is yellow (b) it is the coldest (c) it is the densest (d) it is the stickiest
40. 40.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) cooking oil (b) a tall clear glass (c) a spoon (d) a battery cell

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