Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 402 · 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 coin is less dense than water. (a) True (b) False
2. 2.🧺 Which of these is not needed for the density tower? (a) a tall clear glass (b) cooking oil (c) a mirror (d) honey
3. 3.🧺 Do we need cooking oil for the density tower? (a) not needed (b) needed
4. 4.🧺 Which of these is needed for the density tower? (a) a balloon (b) a magnet (c) cooking oil (d) a battery cell
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 kept the same? (a) the order of the layers (b) the order of pouring (c) the same glass
6. 6.⚖️ 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 what we measure. (a) False (b) True
7. 7.🔍 Which is the odd one out? (a) a ping-pong ball (b) an ice cube (c) a coin (d) air
8. 8.🔮 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
9. 9.🧺 Which of these is needed for the density tower? (a) a mirror (b) a spoon (c) a magnet (d) a balloon
10. 10.⚖️ 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
11. 11.True or false: a ping-pong ball is less dense than water. (a) False (b) True
12. 12.⚖️ 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
13. 13.🛟 Why should we wipe up spilled oil at once? (a) oil turns into honey (b) oil makes it rain (c) oil attracts magnets (d) spilled oil is slippery
14. 14.🔍 Which is the odd one out? (a) a coin (b) honey (c) a glass marble (d) a ping-pong ball
15. 15.🍯 Which of these is denser than water? (a) air (b) cooking oil (c) a pebble (d) a cork
16. 16.🍯 Which of these is less dense than water? (a) a pebble (b) a glass marble (c) a coin (d) air
17. 17.True or false: a battery cell is needed for the density tower. (a) False (b) True
18. 18.🍯 Is a pebble denser or less dense than water? (a) denser than water (b) less dense than water
19. 19.🧺 Do we need a mirror for the density tower? (a) not needed (b) needed
20. 20.🔍 What do you see after pouring honey, water and oil into one glass? (a) the glass gets hot (b) three separate layers (c) one mixed colour (d) bubbles of gas
21. 21.⚖️ 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
22. 22.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a mirror (b) water with food colour (c) a tall clear glass (d) cooking oil
23. 23.🔮 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) under the honey (d) on top of the oil
24. 24.⚖️ 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
25. 25.⚖️ 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
26. 26.🫗 Why does cooking oil float on top of water? (a) oil is less dense (b) oil is sticky (c) oil is hot (d) oil is heavier
27. 27.🍯 Why does honey sink to the bottom of the glass? (a) it is yellow (b) it is the coldest (c) it is the densest (d) it is the stickiest
28. 28.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a spoon (b) a tall clear glass (c) a balloon (d) water with food colour
29. 29.🧺 Which of these is needed for the density tower? (a) water with food colour (b) a magnet (c) a mirror (d) a balloon
30. 30.🧺 Which of these is needed for the density tower? (a) a balloon (b) a magnet (c) a tall clear glass (d) turmeric powder
31. 31.🔍 Which is the odd one out? (a) cooking oil (b) an ice cube (c) honey (d) air
32. 32.📘 What does “dense” mean? (a) very hot (b) very colourful (c) heavy for its size (d) very thin
33. 33.🍯 Is air denser or less dense than water? (a) denser than water (b) less dense than water
34. 34.True or false: a spoon is not needed for the density tower. (a) False (b) True
35. 35.True or false: a pebble is less dense than water. (a) False (b) True
36. 36.⚖️ 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 same three liquids (d) how much of each liquid
37. 37.⚖️ 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
38. 38.🍯 Is an ice cube denser or less dense than water? (a) denser than water (b) less dense than water
39. 39.True or false: an ice cube is denser than water. (a) False (b) True
40. 40.🧺 Do we need water with food colour for the density tower? (a) needed (b) not needed

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