Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 764 · 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.True or false: a magnet is needed for the density tower. (a) False (b) True
2. 2.True or false: a tall clear glass is needed for the density tower. (a) False (b) True
3. 3.🧺 Which of these is not needed for the density tower? (a) a spoon (b) honey (c) a magnet (d) water with food colour
4. 4.🍯 Which of these is less dense than water? (a) very salty water (b) a ping-pong ball (c) honey (d) a glass marble
5. 5.🔮 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
6. 6.🍯 Is an ice cube denser or less dense than water? (a) denser than water (b) less dense than water
7. 7.🍯 Is a ping-pong ball denser or less dense than water? (a) denser than water (b) less dense than water
8. 8.🍯 Which of these is denser than water? (a) an ice cube (b) a ping-pong ball (c) air (d) very salty water
9. 9.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) cooking oil (b) a tall clear glass (c) water with food colour (d) a magnet
10. 10.True or false: a coin is less dense than water. (a) False (b) True
11. 11.🛟 Why should we wipe up spilled oil at once? (a) oil turns into honey (b) oil makes it rain (c) spilled oil is slippery (d) oil attracts magnets
12. 12.🍯 Is air denser or less dense than water? (a) denser than water (b) less dense than water
13. 13.📘 What does “dense” mean? (a) very hot (b) very colourful (c) very thin (d) heavy for its size
14. 14.True or false: a spoon is not needed for the density tower. (a) False (b) True
15. 15.🔍 Which layer is on top in the honey-water-oil tower? (a) the spoon (b) coloured water (c) cooking oil (d) honey
16. 16.🍯 Which of these is less dense than water? (a) honey (b) very salty water (c) a glass marble (d) air
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 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
18. 18.🧺 Which of these is needed for the density tower? (a) honey (b) a balloon (c) a magnet (d) turmeric powder
19. 19.True or false: honey is less dense than water. (a) True (b) False
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.True or false: honey is denser than water. (a) False (b) True
22. 22.🧺 Do we need a battery cell for the density tower? (a) not needed (b) needed
23. 23.⚖️ 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
24. 24.True or false: yeast is needed for the density tower. (a) True (b) False
25. 25.🧺 Do we need a mirror for the density tower? (a) needed (b) not needed
26. 26.⚖️ 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 what we measure. (a) True (b) False
27. 27.⚖️ 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 change it (b) we measure it (c) we keep it the same
28. 28.🍯 Is cooking oil denser or less dense than water? (a) denser than water (b) less dense than water
29. 29.True or false: a glass marble is denser than water. (a) True (b) False
30. 30.🧺 Do we need a balloon for the density tower? (a) not needed (b) needed
31. 31.🧺 Which of these is not needed for the density tower? (a) a spoon (b) water with food colour (c) cooking oil (d) turmeric powder
32. 32.🔍 Which is the odd one out? (a) a glass marble (b) a pebble (c) an ice cube (d) a coin
33. 33.🔍 Which is the odd one out? (a) cooking oil (b) a pebble (c) a cork (d) an ice cube
34. 34.🍯 Which of these is less dense than water? (a) an ice cube (b) a pebble (c) a coin (d) honey
35. 35.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) on top of the oil (b) under the honey (c) in the water layer (d) in the honey layer
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 pouring is kept the same. (a) True (b) False
37. 37.🔮 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
38. 38.🧺 Do we need a magnet for the density tower? (a) not needed (b) needed
39. 39.🍯 Is a cork denser or less dense than water? (a) denser than water (b) less dense than water
40. 40.⚖️ 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 measure it (c) we change it

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