Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 125 · 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.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a spoon (b) a battery cell (c) a tall clear glass (d) cooking oil
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 same glass”? (a) we change it (b) we keep it the same (c) we measure it
3. 3.🍯 Which of these is less dense than water? (a) a ping-pong ball (b) a glass marble (c) a pebble (d) honey
4. 4.🫗 Why does cooking oil float on top of water? (a) oil is sticky (b) oil is heavier (c) oil is hot (d) oil is less dense
5. 5.🔍 Which is the odd one out? (a) honey (b) a glass marble (c) a ping-pong ball (d) a pebble
6. 6.🍯 Is a coin denser or less dense than water? (a) less dense than water (b) denser than water
7. 7.True or false: a spoon is not needed for the density tower. (a) False (b) True
8. 8.🧺 Do we need a spoon for the density tower? (a) not needed (b) needed
9. 9.🛟 Why should we wipe up spilled oil at once? (a) spilled oil is slippery (b) oil makes it rain (c) oil attracts magnets (d) oil turns into honey
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 kept the same. (a) False (b) True
11. 11.True or false: a pebble is denser than water. (a) True (b) False
12. 12.🍯 Is a ping-pong ball denser or less dense than water? (a) less dense than water (b) denser than water
13. 13.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a spoon (b) a tall clear glass (c) cooking oil (d) a magnet
14. 14.True or false: a ping-pong ball 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? Which of these is the one thing we change? (a) the order of pouring (b) the same three liquids (c) how much of each liquid (d) the order of the layers
16. 16.True or false: a coin is denser than water. (a) True (b) False
17. 17.🍯 Why does honey sink to the bottom of the glass? (a) it is the coldest (b) it is the densest (c) it is the stickiest (d) it is yellow
18. 18.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they become solid (b) they turn to honey (c) they mix for ever (d) they separate again
19. 19.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a tall clear glass (b) honey (c) a spoon (d) yeast
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 the one thing we change. (a) True (b) False
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 order of pouring”? (a) we keep it the same (b) we measure it (c) we change it
22. 22.🧺 Which of these is not needed for the density tower? (a) a mirror (b) a tall clear glass (c) cooking oil (d) water with food colour
23. 23.True or false: air is less dense than water. (a) True (b) False
24. 24.True or false: honey is needed for the density tower. (a) True (b) False
25. 25.⚖️ 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
26. 26.🔍 Which is the odd one out? (a) honey (b) air (c) a coin (d) very salty water
27. 27.🔮 Predict: you gently drop a coin into the tower. Where does it end up? (a) at the very bottom (b) in the oil layer (c) on top of the oil (d) in the water layer
28. 28.True or false: a glass marble is denser than water. (a) False (b) True
29. 29.True or false: a tall clear glass is needed for the density tower. (a) True (b) False
30. 30.True or false: yeast is not needed for the density tower. (a) True (b) False
31. 31.True or false: a battery cell is needed for the density tower. (a) False (b) True
32. 32.🍯 Is air denser or less dense than water? (a) less dense than water (b) denser than water
33. 33.⚖️ 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 what we measure. (a) True (b) False
34. 34.🍯 Which of these is denser than water? (a) a glass marble (b) an ice cube (c) a ping-pong ball (d) cooking oil
35. 35.🔍 Which is the odd one out? (a) cooking oil (b) air (c) very salty water (d) a cork
36. 36.🧺 Do we need a tall clear glass for the density tower? (a) needed (b) not needed
37. 37.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) in the water layer (b) in the honey layer (c) on top of the oil (d) under the honey
38. 38.True or false: cooking oil is not needed for the density tower. (a) False (b) True
39. 39.🧺 Which of these is not needed for the density tower? (a) a magnet (b) cooking oil (c) water with food colour (d) honey
40. 40.🔍 Which is the odd one out? (a) honey (b) a pebble (c) cooking oil (d) very salty water

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