Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 797 · 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.🧺 Do we need water with food colour for the density tower? (a) not needed (b) needed
2. 2.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a spoon (b) cooking oil (c) a magnet (d) water with food colour
3. 3.🍯 Is a coin denser or less dense than water? (a) denser than water (b) less dense than water
4. 4.🍯 Why does honey sink to the bottom of the glass? (a) it is the densest (b) it is the stickiest (c) it is yellow (d) it is the coldest
5. 5.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) honey (b) a tall clear glass (c) water with food colour (d) a balloon
6. 6.True or false: a balloon is needed for the density tower. (a) True (b) False
7. 7.🧺 Do we need a spoon for the density tower? (a) needed (b) not needed
8. 8.⚖️ 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 measure it (c) we change it
9. 9.🔮 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
10. 10.🍯 Is a ping-pong ball denser or less dense than water? (a) denser than water (b) less dense than water
11. 11.🔍 Which is the odd one out? (a) a cork (b) an ice cube (c) very salty water (d) air
12. 12.🛟 Why should we wipe up spilled oil at once? (a) oil makes it rain (b) oil attracts magnets (c) spilled oil is slippery (d) oil turns into honey
13. 13.⚖️ 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
14. 14.True or false: a magnet is needed for the density tower. (a) False (b) True
15. 15.True or false: a pebble is less dense than water. (a) True (b) False
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 order of the layers”? (a) we change it (b) we measure 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? What do we do with “the order of pouring”? (a) we change it (b) we measure it (c) we keep it the same
18. 18.⚖️ 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 order of pouring (b) how much of each liquid (c) the order of the layers (d) the same glass
19. 19.True or false: a spoon is needed for the density tower. (a) True (b) False
20. 20.🫗 Why does cooking oil float on top of water? (a) oil is hot (b) oil is heavier (c) oil is less dense (d) oil is sticky
21. 21.📘 What does “dense” mean? (a) very colourful (b) very thin (c) very hot (d) heavy for its size
22. 22.🔍 Which is the odd one out? (a) a coin (b) a glass marble (c) an ice cube (d) honey
23. 23.🧺 Do we need honey for the density tower? (a) needed (b) not needed
24. 24.🔍 Which layer is on top in the honey-water-oil tower? (a) the spoon (b) honey (c) coloured water (d) cooking oil
25. 25.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) yeast (b) water with food colour (c) honey (d) cooking oil
26. 26.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) honey (b) water with food colour (c) a battery cell (d) cooking oil
27. 27.🧺 Which of these is not needed for the density tower? (a) a tall clear glass (b) honey (c) cooking oil (d) a battery cell
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) water with food colour (d) turmeric powder
29. 29.True or false: very salty water is less dense than water. (a) True (b) False
30. 30.True or false: a glass marble is less dense than water. (a) False (b) True
31. 31.🧺 Which of these is needed for the density tower? (a) turmeric powder (b) cooking oil (c) yeast (d) a balloon
32. 32.True or false: honey is not needed for the density tower. (a) True (b) False
33. 33.True or false: a tall clear glass is not needed for the density tower. (a) True (b) False
34. 34.True or false: honey is less dense than water. (a) True (b) False
35. 35.🔍 Which is the odd one out? (a) a pebble (b) very salty water (c) a ping-pong ball (d) honey
36. 36.🍯 Is a glass marble denser or less dense than water? (a) less dense than water (b) denser than water
37. 37.🧺 Which of these is needed for the density tower? (a) turmeric powder (b) yeast (c) a balloon (d) honey
38. 38.True or false: honey is denser than water. (a) True (b) False
39. 39.⚖️ 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
40. 40.True or false: an ice cube is denser than water. (a) True (b) False

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