Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 370 · 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 same glass (b) the order of the layers (c) how much of each liquid (d) the order of pouring
2. 2.🔮 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
3. 3.🍯 Which of these is less dense than water? (a) honey (b) a pebble (c) a cork (d) a coin
4. 4.🍯 Which of these is denser than water? (a) air (b) an ice cube (c) cooking oil (d) honey
5. 5.🛟 Why should we wipe up spilled oil at once? (a) oil turns into honey (b) oil attracts magnets (c) oil makes it rain (d) spilled oil is slippery
6. 6.⚖️ 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 kept the same. (a) False (b) True
7. 7.🔍 Which is the odd one out? (a) a coin (b) a ping-pong ball (c) very salty water (d) a glass marble
8. 8.⚖️ 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 same glass (b) the order of the layers (c) the same three liquids (d) the order of pouring
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: how much of each liquid is the one thing we change. (a) True (b) False
10. 10.⚖️ 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 the layers (b) the same three liquids (c) the order of pouring
11. 11.🍯 Is an ice cube denser or less dense than water? (a) denser than water (b) less dense than water
12. 12.🍯 Is honey denser or less dense than water? (a) denser than water (b) less dense than water
13. 13.⚖️ 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
14. 14.True or false: air is denser than water. (a) False (b) True
15. 15.True or false: yeast is needed for the density tower. (a) False (b) True
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 “the order of pouring”? (a) we keep it the same (b) we measure it (c) we change it
17. 17.🔍 Which is the odd one out? (a) very salty water (b) an ice cube (c) a coin (d) a pebble
18. 18.True or false: yeast is not needed for the density tower. (a) False (b) True
19. 19.🍯 Is a pebble denser or less dense than water? (a) less dense than water (b) denser than water
20. 20.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) under the honey (b) in the water layer (c) in the honey layer (d) on top of the oil
21. 21.🔍 Which layer is on top in the honey-water-oil tower? (a) honey (b) the spoon (c) coloured water (d) cooking oil
22. 22.🔍 Which is the odd one out? (a) cooking oil (b) very salty water (c) a cork (d) air
23. 23.🔮 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) at the very bottom (d) on top of the oil
24. 24.🍯 Is a coin denser or less dense than water? (a) denser than water (b) less dense than water
25. 25.True or false: a tall clear glass is not needed for the density tower. (a) True (b) False
26. 26.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a spoon (b) honey (c) a tall clear glass (d) a mirror
27. 27.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) honey (b) a tall clear glass (c) a balloon (d) a spoon
28. 28.True or false: turmeric powder is not needed for the density tower. (a) False (b) True
29. 29.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) water with food colour (b) cooking oil (c) yeast (d) honey
30. 30.🛟 Which rule keeps the density tower experiment safe? (a) throw the glass (b) pour it on the floor (c) taste each layer (d) do not lick the spoon
31. 31.🍯 Which of these is less dense than water? (a) honey (b) a glass marble (c) a coin (d) an ice cube
32. 32.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a spoon (b) a magnet (c) water with food colour (d) a tall clear glass
33. 33.🔍 Which is the odd one out? (a) cooking oil (b) a cork (c) a pebble (d) air
34. 34.🍯 Which of these is denser than water? (a) air (b) a pebble (c) cooking oil (d) an ice cube
35. 35.🔍 Which is the odd one out? (a) very salty water (b) cooking oil (c) a pebble (d) honey
36. 36.🧺 Which of these is needed for the density tower? (a) a tall clear glass (b) yeast (c) a mirror (d) turmeric powder
37. 37.🫗 Why does cooking oil float on top of water? (a) oil is hot (b) oil is heavier (c) oil is less dense (d) oil is sticky
38. 38.🍯 Which of these is denser than water? (a) an ice cube (b) air (c) a cork (d) a coin
39. 39.🧺 Which of these is not needed for the density tower? (a) water with food colour (b) cooking oil (c) yeast (d) a tall clear glass
40. 40.🧺 Which of these is needed for the density tower? (a) a magnet (b) a spoon (c) a balloon (d) a battery cell

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