Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 611 · 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.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) in the water layer (b) in the honey layer (c) on top of the oil (d) under the honey
2. 2.🧺 Which of these is not needed for the density tower? (a) cooking oil (b) a mirror (c) a tall clear glass (d) water with food colour
3. 3.True or false: water with food colour is needed for the density tower. (a) False (b) True
4. 4.⚖️ 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) how much of each liquid
5. 5.True or false: yeast is needed for the density tower. (a) True (b) False
6. 6.⚖️ 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 the layers”? (a) we change it (b) we measure it (c) we keep it the same
7. 7.🧺 Do we need a balloon for the density tower? (a) not needed (b) needed
8. 8.True or false: honey is not needed for the density tower. (a) False (b) True
9. 9.True or false: air is denser than water. (a) True (b) False
10. 10.🔍 Which is the odd one out? (a) a glass marble (b) air (c) a ping-pong ball (d) an ice cube
11. 11.🔍 Which layer is on top in the honey-water-oil tower? (a) honey (b) coloured water (c) the spoon (d) cooking oil
12. 12.🍯 Which of these is less dense than water? (a) a pebble (b) a ping-pong ball (c) a coin (d) very salty water
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 same glass”? (a) we measure it (b) we keep it the same (c) we change it
14. 14.⚖️ 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) how much of each liquid
15. 15.🔍 Which is the odd one out? (a) a coin (b) very salty water (c) a ping-pong ball (d) honey
16. 16.🫗 Why does cooking oil float on top of water? (a) oil is less dense (b) oil is heavier (c) oil is hot (d) oil is sticky
17. 17.🔮 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) at the very bottom (d) in the water layer
18. 18.🧺 Which of these is needed for the density tower? (a) a battery cell (b) a mirror (c) a balloon (d) cooking oil
19. 19.True or false: a magnet is needed for the density tower. (a) True (b) False
20. 20.📘 What does “dense” mean? (a) very hot (b) very thin (c) heavy for its size (d) very colourful
21. 21.🧺 Do we need yeast for the density tower? (a) not needed (b) needed
22. 22.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a tall clear glass (b) honey (c) a battery cell (d) cooking oil
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.🛟 Why should we wipe up spilled oil at once? (a) oil attracts magnets (b) spilled oil is slippery (c) oil makes it rain (d) oil turns into honey
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 order of pouring (b) the same glass (c) the same three liquids (d) how much of each liquid
26. 26.🧺 Do we need turmeric powder for the density tower? (a) needed (b) not needed
27. 27.🍯 Is a cork denser or less dense than water? (a) denser than water (b) less dense than water
28. 28.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a spoon (b) water with food colour (c) a magnet (d) cooking oil
29. 29.True or false: very salty water is less dense than water. (a) True (b) False
30. 30.🛟 Which rule keeps the density tower experiment safe? (a) pour it on the floor (b) do not lick the spoon (c) taste each layer (d) throw the glass
31. 31.🧺 Do we need a mirror for the density tower? (a) needed (b) not needed
32. 32.🔍 Which is the odd one out? (a) air (b) cooking oil (c) honey (d) an ice cube
33. 33.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) yeast (b) cooking oil (c) water with food colour (d) a tall clear glass
34. 34.🧺 Which of these is needed for the density tower? (a) yeast (b) water with food colour (c) a balloon (d) turmeric powder
35. 35.🍯 Is an ice cube denser or less dense than water? (a) denser than water (b) less dense than water
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 the one thing we change. (a) True (b) False
37. 37.⚖️ 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 measure it (b) we change it (c) we keep it the same
38. 38.⚖️ 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
39. 39.True or false: a balloon is not needed for the density tower. (a) False (b) True
40. 40.🔍 Which is the odd one out? (a) an ice cube (b) very salty water (c) air (d) cooking oil

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