Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 617 · 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 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
2. 2.🧺 Do we need a magnet for the density tower? (a) needed (b) not needed
3. 3.🍯 Is a glass marble denser or less dense than water? (a) less dense than water (b) denser than water
4. 4.🍯 Is a coin denser or less dense than water? (a) less dense than water (b) denser than water
5. 5.🧺 Which of these is needed for the density tower? (a) a balloon (b) cooking oil (c) yeast (d) a battery cell
6. 6.🍯 Which of these is denser than water? (a) air (b) cooking oil (c) an ice cube (d) very salty water
7. 7.🍯 Why does honey sink to the bottom of the glass? (a) it is the stickiest (b) it is yellow (c) it is the densest (d) it is the coldest
8. 8.🧺 Which of these is not needed for the density tower? (a) a tall clear glass (b) water with food colour (c) cooking oil (d) yeast
9. 9.True or false: a cork is denser than water. (a) True (b) False
10. 10.True or false: a battery cell is needed for the density tower. (a) True (b) False
11. 11.True or false: honey is denser than water. (a) True (b) False
12. 12.🧺 Which of these is not needed for the density tower? (a) a tall clear glass (b) a battery cell (c) honey (d) cooking oil
13. 13.True or false: a ping-pong ball is denser than water. (a) False (b) True
14. 14.🧺 Do we need a balloon for the density tower? (a) needed (b) not needed
15. 15.🍯 Is cooking oil denser or less dense than water? (a) less dense than water (b) denser than water
16. 16.🔍 Which is the odd one out? (a) cooking oil (b) air (c) a ping-pong ball (d) very salty water
17. 17.🫗 Why does cooking oil float on top of water? (a) oil is heavier (b) oil is hot (c) oil is sticky (d) oil is less dense
18. 18.⚖️ 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 measure it (c) we keep it the same
19. 19.🔍 Which is the odd one out? (a) a coin (b) honey (c) an ice cube (d) a glass marble
20. 20.⚖️ 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) how much of each liquid (b) the same three liquids (c) the order of the layers (d) the order of pouring
21. 21.🧺 Do we need a spoon for the density tower? (a) not needed (b) needed
22. 22.🛟 Which rule keeps the density tower experiment safe? (a) throw the glass (b) pour it on the floor (c) taste each layer (d) do not lick the spoon
23. 23.🔍 Which is the odd one out? (a) a ping-pong ball (b) cooking oil (c) an ice cube (d) a glass marble
24. 24.True or false: a battery cell is not needed for the density tower. (a) True (b) False
25. 25.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they turn to honey (b) they become solid (c) they separate again (d) they mix for ever
26. 26.⚖️ 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
27. 27.🔍 Which is the odd one out? (a) air (b) cooking oil (c) a cork (d) a pebble
28. 28.🍯 Is very salty water denser or less dense than water? (a) denser than water (b) less dense than water
29. 29.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a balloon (b) a spoon (c) cooking oil (d) water with food colour
30. 30.🔍 Which layer is on top in the honey-water-oil tower? (a) the spoon (b) cooking oil (c) honey (d) coloured water
31. 31.🧺 Which of these is not needed for the density tower? (a) turmeric powder (b) honey (c) a tall clear glass (d) water with food colour
32. 32.True or false: water with food colour is needed for the density tower. (a) True (b) False
33. 33.🍯 Which of these is denser than water? (a) an ice cube (b) a ping-pong ball (c) honey (d) air
34. 34.🍯 Is a ping-pong ball denser or less dense than water? (a) denser than water (b) less dense than water
35. 35.⚖️ 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) True (b) False
36. 36.🍯 Which of these is less dense than water? (a) a pebble (b) a coin (c) a ping-pong ball (d) honey
37. 37.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a spoon (b) water with food colour (c) honey (d) a battery cell
38. 38.⚖️ 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 measure it (c) we change it
39. 39.🍯 Which of these is less dense than water? (a) a glass marble (b) very salty water (c) cooking oil (d) honey
40. 40.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) in the water layer (b) in the honey layer (c) on top of the oil (d) under the honey

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