Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 663 · 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.🧺 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) yeast (d) a spoon
2. 2.⚖️ 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 pouring (c) how much of each liquid (d) the same glass
3. 3.True or false: a balloon is needed for the density tower. (a) False (b) True
4. 4.🧺 Do we need a battery cell for the density tower? (a) needed (b) not needed
5. 5.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) under the honey (b) in the water layer (c) in the honey layer (d) on top of the oil
6. 6.🍯 Is an ice cube denser or less dense than water? (a) denser than water (b) less dense than water
7. 7.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they mix for ever (b) they separate again (c) they become solid (d) they turn to honey
8. 8.⚖️ 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 the one thing we change. (a) True (b) False
9. 9.🔍 Which is the odd one out? (a) a coin (b) a cork (c) very salty water (d) a pebble
10. 10.🧺 Do we need a magnet for the density tower? (a) not needed (b) needed
11. 11.⚖️ 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
12. 12.🛟 Why should we wipe up spilled oil at once? (a) spilled oil is slippery (b) oil turns into honey (c) oil attracts magnets (d) oil makes it rain
13. 13.True or false: a magnet is not needed for the density tower. (a) False (b) True
14. 14.⚖️ 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 change it (b) we keep it the same (c) we measure it
15. 15.🧺 Do we need a spoon for the density tower? (a) needed (b) not needed
16. 16.True or false: a magnet is needed for the density tower. (a) False (b) True
17. 17.True or false: cooking oil is denser than water. (a) True (b) False
18. 18.True or false: cooking oil is less dense than water. (a) True (b) False
19. 19.🔍 Which layer is on top in the honey-water-oil tower? (a) honey (b) coloured water (c) cooking oil (d) the spoon
20. 20.🍯 Which of these is denser than water? (a) a ping-pong ball (b) an ice cube (c) honey (d) air
21. 21.True or false: cooking oil is needed for the density tower. (a) False (b) True
22. 22.True or false: honey is needed for the density tower. (a) True (b) False
23. 23.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a spoon (b) a tall clear glass (c) honey (d) a magnet
24. 24.🫗 Why does cooking oil float on top of water? (a) oil is heavier (b) oil is sticky (c) oil is hot (d) oil is less dense
25. 25.🧺 Do we need turmeric powder for the density tower? (a) needed (b) not needed
26. 26.🧺 Do we need water with food colour for the density tower? (a) needed (b) not needed
27. 27.🍯 Is a coin denser or less dense than water? (a) denser than water (b) less dense than water
28. 28.🔮 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) at the very bottom (d) on top of the oil
29. 29.True or false: a ping-pong ball is denser than water. (a) True (b) False
30. 30.🧺 Which of these is needed for the density tower? (a) a spoon (b) a magnet (c) yeast (d) a battery cell
31. 31.🍯 Is a ping-pong ball denser or less dense than water? (a) denser than water (b) less dense than water
32. 32.True or false: a tall clear glass is not needed for the density tower. (a) False (b) True
33. 33.True or false: a spoon is needed for the density tower. (a) True (b) False
34. 34.⚖️ 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) the order of the layers (c) how much of each liquid (d) the same glass
35. 35.🧺 Which of these is not needed for the density tower? (a) water with food colour (b) yeast (c) honey (d) a tall clear glass
36. 36.🍯 Which of these is less dense than water? (a) a glass marble (b) a pebble (c) an ice cube (d) a coin
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 keep it the same (b) we change it (c) we measure it
38. 38.🍯 Is air denser or less dense than water? (a) denser than water (b) less dense than water
39. 39.🛟 Which rule keeps the density tower experiment safe? (a) taste each layer (b) throw the glass (c) do not lick the spoon (d) pour it on the floor
40. 40.⚖️ 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) False (b) True

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