Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 601 · 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.🫗 Why does cooking oil float on top of water? (a) oil is heavier (b) oil is less dense (c) oil is sticky (d) oil is hot
2. 2.🛟 Why should we wipe up spilled oil at once? (a) oil makes it rain (b) oil turns into honey (c) oil attracts magnets (d) spilled oil is slippery
3. 3.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a spoon (b) yeast (c) water with food colour (d) a tall clear glass
4. 4.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) honey (b) a battery cell (c) cooking oil (d) a spoon
5. 5.⚖️ 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 keep it the same (b) we measure it (c) we change it
6. 6.🧺 Which of these is not needed for the density tower? (a) a spoon (b) a tall clear glass (c) water with food colour (d) a mirror
7. 7.⚖️ 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 glass is kept the same. (a) True (b) False
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 order of pouring”? (a) we measure it (b) we keep it the same (c) we change it
9. 9.🧺 Which of these is needed for the density tower? (a) turmeric powder (b) a spoon (c) yeast (d) a mirror
10. 10.True or false: a magnet is not needed for the density tower. (a) True (b) False
11. 11.🔍 What do you see after pouring honey, water and oil into one glass? (a) bubbles of gas (b) three separate layers (c) the glass gets hot (d) one mixed colour
12. 12.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) water with food colour (b) a balloon (c) cooking oil (d) a spoon
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 “how much of each liquid”? (a) we measure it (b) we change it (c) we keep it the same
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 kept the same? (a) the same glass (b) the order of the layers (c) the order of pouring
15. 15.🧺 Do we need a spoon for the density tower? (a) needed (b) not needed
16. 16.🔮 Predict: you gently drop a coin into the tower. Where does it end up? (a) at the very bottom (b) in the water layer (c) in the oil layer (d) on top of the oil
17. 17.True or false: a cork is less dense than water. (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.🍯 Which of these is less dense than water? (a) a pebble (b) a glass marble (c) very salty water (d) a ping-pong ball
20. 20.🧺 Do we need yeast for the density tower? (a) not needed (b) needed
21. 21.🧺 Do we need a mirror for the density tower? (a) not needed (b) needed
22. 22.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they become solid (b) they separate again (c) they turn to honey (d) they mix for ever
23. 23.🧺 Which of these is not needed for the density tower? (a) honey (b) cooking oil (c) a tall clear glass (d) a magnet
24. 24.🔍 Which is the odd one out? (a) a ping-pong ball (b) an ice cube (c) a cork (d) honey
25. 25.🧺 Which of these is needed for the density tower? (a) a magnet (b) a balloon (c) yeast (d) a tall clear glass
26. 26.🍯 Which of these is denser than water? (a) a coin (b) a cork (c) cooking oil (d) a ping-pong ball
27. 27.⚖️ 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 what we measure. (a) False (b) True
28. 28.🍯 Is a ping-pong ball denser or less dense than water? (a) denser than water (b) less dense than water
29. 29.True or false: honey is denser than water. (a) False (b) True
30. 30.True or false: cooking oil is denser than water. (a) False (b) True
31. 31.🍯 Is a glass marble denser or less dense than water? (a) less dense than water (b) denser than water
32. 32.True or false: a cork is denser than water. (a) False (b) True
33. 33.🧺 Do we need turmeric powder for the density tower? (a) needed (b) not needed
34. 34.⚖️ 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
35. 35.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a tall clear glass (b) water with food colour (c) a spoon (d) a magnet
36. 36.True or false: air is less dense than water. (a) False (b) True
37. 37.🧺 Do we need a magnet for the density tower? (a) not needed (b) needed
38. 38.True or false: a magnet is needed for the density tower. (a) False (b) True
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 glass is what we measure. (a) True (b) False
40. 40.🧺 Which of these is needed for the density tower? (a) a magnet (b) water with food colour (c) turmeric powder (d) yeast

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