Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 84 · 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.⚖️ 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) how much of each liquid (d) the order of pouring
2. 2.📘 What does “dense” mean? (a) very colourful (b) very hot (c) heavy for its size (d) very thin
3. 3.True or false: cooking oil is less dense than water. (a) True (b) False
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 the layers is what we measure. (a) False (b) True
5. 5.🍯 Which of these is less dense than water? (a) a pebble (b) honey (c) a glass marble (d) air
6. 6.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a tall clear glass (b) water with food colour (c) a spoon (d) yeast
7. 7.🧺 Which of these is needed for the density tower? (a) a battery cell (b) honey (c) a balloon (d) yeast
8. 8.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) in the honey layer (b) in the water layer (c) under the honey (d) on top of the oil
9. 9.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) water with food colour (b) a spoon (c) honey (d) a mirror
10. 10.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a tall clear glass (b) a magnet (c) water with food colour (d) cooking oil
11. 11.🔮 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 separate again (d) they mix for ever
12. 12.True or false: an ice cube is denser than water. (a) True (b) False
13. 13.🍯 Which of these is denser than water? (a) cooking oil (b) a ping-pong ball (c) a cork (d) honey
14. 14.🍯 Is an ice cube denser or less dense than water? (a) less dense than water (b) denser than water
15. 15.⚖️ 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
16. 16.⚖️ 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 keep it the same (b) we change it (c) we measure it
17. 17.🍯 Is very salty water denser or less dense than water? (a) denser than water (b) less dense than water
18. 18.🧺 Which of these is needed for the density tower? (a) a battery cell (b) a tall clear glass (c) a mirror (d) yeast
19. 19.True or false: air is denser than water. (a) True (b) False
20. 20.🔍 Which is the odd one out? (a) a cork (b) a coin (c) cooking oil (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? True or false: the same three liquids is the one thing we change. (a) True (b) False
22. 22.⚖️ 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) True (b) False
23. 23.🧺 Do we need a mirror for the density tower? (a) needed (b) not needed
24. 24.🧺 Do we need a magnet for the density tower? (a) needed (b) not needed
25. 25.🍯 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
26. 26.True or false: a balloon is not needed for the density tower. (a) False (b) True
27. 27.🛟 Why should we wipe up spilled oil at once? (a) spilled oil is slippery (b) oil turns into honey (c) oil attracts magnets (d) oil makes it rain
28. 28.True or false: honey is needed for the density tower. (a) True (b) False
29. 29.🔍 Which is the odd one out? (a) very salty water (b) honey (c) a glass marble (d) air
30. 30.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) cooking oil (b) honey (c) a balloon (d) a tall clear glass
31. 31.🍯 Is a ping-pong ball denser or less dense than water? (a) less dense than water (b) denser than water
32. 32.🫗 Why does cooking oil float on top of water? (a) oil is less dense (b) oil is hot (c) oil is sticky (d) oil is heavier
33. 33.⚖️ 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) how much of each liquid (b) the order of the layers (c) the order of pouring
34. 34.⚖️ 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
35. 35.⚖️ 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 keep it the same (b) we measure it (c) we change it
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 same three liquids is what we measure. (a) True (b) False
37. 37.🧺 Which of these is not needed for the density tower? (a) yeast (b) a tall clear glass (c) water with food colour (d) a spoon
38. 38.True or false: yeast is needed for the density tower. (a) False (b) True
39. 39.🔍 Which is the odd one out? (a) a glass marble (b) honey (c) very salty water (d) a ping-pong ball
40. 40.🧺 Do we need water with food colour for the density tower? (a) not needed (b) needed

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