Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 906 · 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 denser than water? (a) a cork (b) a ping-pong ball (c) air (d) very salty water
2. 2.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) water with food colour (b) cooking oil (c) a battery cell (d) honey
3. 3.🛟 Which rule keeps the density tower experiment safe? (a) throw the glass (b) pour it on the floor (c) do not lick the spoon (d) taste each layer
4. 4.🍯 Is air denser or less dense than water? (a) denser than water (b) less dense than water
5. 5.🛟 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
6. 6.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) cooking oil (b) a tall clear glass (c) a magnet (d) a spoon
7. 7.🍯 Why does honey sink to the bottom of the glass? (a) it is the densest (b) it is the coldest (c) it is the stickiest (d) it is yellow
8. 8.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) in the honey layer (b) in the water layer (c) on top of the oil (d) under the honey
9. 9.⚖️ 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) how much of each liquid (c) the order of the layers (d) the same three liquids
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 the one thing we change? (a) the same three liquids (b) the order of the layers (c) the same glass (d) the order of pouring
11. 11.🍯 Which of these is denser than water? (a) an ice cube (b) a ping-pong ball (c) a coin (d) cooking oil
12. 12.🧺 Do we need a mirror for the density tower? (a) not needed (b) needed
13. 13.🔍 Which layer is on top in the honey-water-oil tower? (a) coloured water (b) the spoon (c) honey (d) cooking oil
14. 14.🧺 Do we need a battery cell for the density tower? (a) needed (b) not needed
15. 15.🍯 Which of these is less dense than water? (a) a ping-pong ball (b) a coin (c) honey (d) a glass marble
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 same three liquids”? (a) we measure it (b) we change it (c) we keep it the same
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 kept the same? (a) the order of the layers (b) the order of pouring (c) the same three liquids
18. 18.True or false: a magnet is not needed for the density tower. (a) True (b) False
19. 19.📘 What does “dense” mean? (a) very thin (b) heavy for its size (c) very hot (d) very colourful
20. 20.⚖️ 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 keep it the same (c) we measure it
21. 21.🍯 Which of these is denser than water? (a) air (b) cooking oil (c) a pebble (d) a cork
22. 22.⚖️ 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 change it (c) we measure it
23. 23.True or false: air is less dense than water. (a) True (b) False
24. 24.🫗 Why does cooking oil float on top of water? (a) oil is less dense (b) oil is hot (c) oil is sticky (d) oil is heavier
25. 25.True or false: a glass marble is less dense than water. (a) False (b) True
26. 26.🍯 Is a glass marble denser or less dense than water? (a) denser than water (b) less dense than water
27. 27.🍯 Is a ping-pong ball denser or less dense than water? (a) less dense than water (b) denser than water
28. 28.🔍 Which is the odd one out? (a) a ping-pong ball (b) a coin (c) a glass marble (d) honey
29. 29.True or false: a tall clear glass is needed for the density tower. (a) False (b) True
30. 30.🧺 Which of these is not needed for the density tower? (a) cooking oil (b) a tall clear glass (c) water with food colour (d) a battery cell
31. 31.⚖️ 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
32. 32.⚖️ 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 measure it (b) we keep it the same (c) we change it
33. 33.🧺 Do we need cooking oil for the density tower? (a) not needed (b) needed
34. 34.🧺 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) turmeric powder
35. 35.🔍 Which is the odd one out? (a) cooking oil (b) air (c) a cork (d) a glass marble
36. 36.True or false: water with food colour is needed for the density tower. (a) False (b) True
37. 37.🧺 Which of these is not needed for the density tower? (a) turmeric powder (b) a spoon (c) a tall clear glass (d) water with food colour
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: how much of each liquid is the one thing we change. (a) True (b) False
39. 39.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) honey (b) a tall clear glass (c) a spoon (d) a balloon
40. 40.True or false: cooking oil is not needed for the density tower. (a) True (b) False

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