Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 2 · 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 of these is not needed for the density tower? (a) a tall clear glass (b) yeast (c) cooking oil (d) water with food colour
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 three liquids”? (a) we change it (b) we measure it (c) we keep it the same
3. 3.⚖️ 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 three liquids (b) the same glass (c) how much of each liquid (d) the order of pouring
4. 4.🍯 Which of these is less dense than water? (a) a glass marble (b) cooking oil (c) a pebble (d) a coin
5. 5.True or false: a mirror is needed for the density tower. (a) False (b) True
6. 6.🔍 Which is the odd one out? (a) an ice cube (b) a cork (c) cooking oil (d) very salty water
7. 7.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they mix for ever (b) they separate again (c) they turn to honey (d) they become solid
8. 8.📘 What does “dense” mean? (a) heavy for its size (b) very thin (c) very colourful (d) very hot
9. 9.True or false: turmeric powder is needed for the density tower. (a) False (b) True
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.🔍 Which layer is on top in the honey-water-oil tower? (a) cooking oil (b) honey (c) coloured water (d) the spoon
12. 12.🛟 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
13. 13.⚖️ 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 change it (b) we keep it the same (c) we measure it
14. 14.🫗 Why does cooking oil float on top of water? (a) oil is less dense (b) oil is heavier (c) oil is sticky (d) oil is hot
15. 15.🍯 Which of these is denser than water? (a) a glass marble (b) air (c) a cork (d) an ice cube
16. 16.⚖️ 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
17. 17.True or false: a balloon is not needed for the density tower. (a) False (b) True
18. 18.⚖️ 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
19. 19.🔍 Which is the odd one out? (a) a coin (b) cooking oil (c) very salty water (d) a pebble
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 same glass is what we measure. (a) False (b) True
21. 21.🧺 Do we need a tall clear glass for the density tower? (a) needed (b) not needed
22. 22.🔮 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) on top of the oil (d) at the very bottom
23. 23.🧺 Do we need water with food colour 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? True or false: the order of pouring is what we measure. (a) True (b) False
25. 25.True or false: very salty water is less dense than water. (a) False (b) True
26. 26.True or false: a ping-pong ball is less dense than water. (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? True or false: the order of the layers is the one thing we change. (a) False (b) True
28. 28.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) honey (b) water with food colour (c) a tall clear glass (d) turmeric powder
29. 29.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) cooking oil (b) honey (c) a mirror (d) a spoon
30. 30.🍯 Which of these is denser than water? (a) air (b) a pebble (c) an ice cube (d) a cork
31. 31.True or false: air is denser than water. (a) True (b) False
32. 32.⚖️ 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) True (b) False
33. 33.🧺 Do we need turmeric powder for the density tower? (a) needed (b) not needed
34. 34.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) cooking oil (b) a spoon (c) a tall clear glass (d) a battery cell
35. 35.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a spoon (b) a magnet (c) a tall clear glass (d) honey
36. 36.True or false: a balloon is needed for the density tower. (a) False (b) True
37. 37.🧺 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 balloon
38. 38.True or false: a battery cell is not needed for the density tower. (a) True (b) False
39. 39.🍯 Is cooking oil denser or less dense than water? (a) less dense than water (b) denser than water
40. 40.🛟 Which rule keeps the density tower experiment safe? (a) taste each layer (b) pour it on the floor (c) do not lick the spoon (d) throw the glass

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