Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 580 · 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? True or false: the order of pouring is the one thing we change. (a) False (b) True
2. 2.True or false: a ping-pong ball is denser than water. (a) False (b) True
3. 3.🧺 Which of these is needed for the density tower? (a) a battery cell (b) yeast (c) a tall clear glass (d) turmeric powder
4. 4.True or false: yeast is not needed for the density tower. (a) False (b) True
5. 5.⚖️ 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) how much of each liquid (b) the same three liquids (c) the order of pouring (d) the order of the layers
6. 6.🛟 Why should we wipe up spilled oil at once? (a) spilled oil is slippery (b) oil makes it rain (c) oil turns into honey (d) oil attracts magnets
7. 7.True or false: turmeric powder is needed for the density tower. (a) False (b) True
8. 8.🍯 Is a cork denser or less dense than water? (a) less dense than water (b) denser than water
9. 9.🛟 Which rule keeps the density tower experiment safe? (a) pour it on the floor (b) throw the glass (c) taste each layer (d) do not lick the spoon
10. 10.🔮 Predict: you gently drop a coin into the tower. Where does it end up? (a) on top of the oil (b) at the very bottom (c) in the oil layer (d) in the water layer
11. 11.⚖️ 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 keep it the same (b) we change it (c) we measure it
12. 12.🍯 Which of these is less dense than water? (a) a glass marble (b) honey (c) cooking oil (d) a coin
13. 13.🍯 Is air denser or less dense than water? (a) denser than water (b) less dense than water
14. 14.⚖️ 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 change it (b) we measure it (c) we keep it the same
15. 15.🍯 Is cooking oil denser or less dense than water? (a) denser than water (b) less dense than water
16. 16.🧺 Which of these is not needed for the density tower? (a) a tall clear glass (b) water with food colour (c) cooking oil (d) a balloon
17. 17.True or false: very salty water is less dense than water. (a) False (b) True
18. 18.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a magnet (b) water with food colour (c) a spoon (d) a tall clear glass
19. 19.True or false: a tall clear glass is needed for the density tower. (a) True (b) False
20. 20.🍯 Which of these is less dense than water? (a) a coin (b) a pebble (c) a glass marble (d) an ice cube
21. 21.🧺 Which of these is not needed for the density tower? (a) a spoon (b) water with food colour (c) a tall clear glass (d) turmeric powder
22. 22.🫗 Why does cooking oil float on top of water? (a) oil is hot (b) oil is sticky (c) oil is less dense (d) oil is heavier
23. 23.🧺 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) turmeric powder
24. 24.🔮 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 separate again (d) they become solid
25. 25.⚖️ 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 pouring (c) the order of the layers (d) how much of each liquid
26. 26.🧺 Do we need a balloon for the density tower? (a) needed (b) not needed
27. 27.🧺 Which of these is needed for the density tower? (a) honey (b) yeast (c) a mirror (d) turmeric powder
28. 28.📘 What does “dense” mean? (a) very thin (b) heavy for its size (c) very colourful (d) very hot
29. 29.🔍 Which is the odd one out? (a) a coin (b) honey (c) very salty water (d) cooking oil
30. 30.🔍 Which is the odd one out? (a) very salty water (b) honey (c) a glass marble (d) air
31. 31.🍯 Is a ping-pong ball denser or less dense than water? (a) denser than water (b) less dense than water
32. 32.🔍 Which is the odd one out? (a) an ice cube (b) cooking oil (c) very salty water (d) air
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) the order of pouring (b) the order of the layers (c) the same three liquids
34. 34.🧺 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 balloon
35. 35.True or false: a magnet is not needed for the density tower. (a) False (b) True
36. 36.🧺 Which of these is not needed for the density tower? (a) cooking oil (b) a tall clear glass (c) honey (d) a battery cell
37. 37.🍯 Which of these is denser than water? (a) a cork (b) air (c) an ice cube (d) honey
38. 38.🔍 Which is the odd one out? (a) an ice cube (b) air (c) cooking oil (d) a glass marble
39. 39.⚖️ 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 keep it the same (c) we measure it
40. 40.True or false: a coin is denser than water. (a) False (b) True

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