Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 487 · 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.🧺 Which of these is not needed for the density tower? (a) a tall clear glass (b) a spoon (c) a battery cell (d) cooking oil
2. 2.🍯 Is a coin denser or less dense than water? (a) denser than water (b) less dense than water
3. 3.True or false: a pebble is less dense than water. (a) True (b) False
4. 4.🍯 Which of these is denser than water? (a) a cork (b) very salty water (c) an ice cube (d) air
5. 5.🍯 Is a ping-pong ball denser or less dense than water? (a) less dense than water (b) denser than water
6. 6.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a balloon (b) a spoon (c) water with food colour (d) a tall clear glass
7. 7.🧺 Do we need cooking oil for the density tower? (a) needed (b) not needed
8. 8.True or false: a spoon is needed for the density tower. (a) True (b) False
9. 9.🍯 Why does honey sink to the bottom of the glass? (a) it is the stickiest (b) it is the densest (c) it is the coldest (d) it is yellow
10. 10.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) honey (b) cooking oil (c) a magnet (d) a tall clear glass
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 kept the same. (a) False (b) True
12. 12.🍯 Is honey denser or less dense than water? (a) denser than water (b) less dense than water
13. 13.True or false: air is denser than water. (a) True (b) False
14. 14.🧺 Do we need a balloon for the density tower? (a) needed (b) not needed
15. 15.🧺 Do we need honey for the density tower? (a) not needed (b) needed
16. 16.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) under the honey (b) in the water layer (c) on top of the oil (d) in the honey layer
17. 17.⚖️ 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 the layers (b) the order of pouring (c) how much of each liquid (d) the same glass
18. 18.🍯 Is cooking oil denser or less dense than water? (a) less dense than water (b) denser than water
19. 19.🍯 Which of these is less dense than water? (a) very salty water (b) a cork (c) a coin (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? What do we do with “the same three liquids”? (a) we change it (b) we measure it (c) we keep it the same
21. 21.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) cooking oil (b) a spoon (c) honey (d) a mirror
22. 22.⚖️ 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 measure it (b) we change it (c) we keep it the same
23. 23.True or false: very salty water is less dense than water. (a) True (b) False
24. 24.True or false: yeast is needed for the density tower. (a) True (b) False
25. 25.🛟 Why should we wipe up spilled oil at once? (a) oil attracts magnets (b) oil turns into honey (c) spilled oil is slippery (d) oil makes it rain
26. 26.True or false: a pebble is denser than water. (a) False (b) True
27. 27.⚖️ 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) the order of the layers (d) the same glass
28. 28.🫗 Why does cooking oil float on top of water? (a) oil is sticky (b) oil is less dense (c) oil is heavier (d) oil is hot
29. 29.🍯 Is air denser or less dense than water? (a) denser than water (b) less dense than water
30. 30.🔮 Predict: you gently drop a coin into the tower. Where does it end up? (a) on top of the oil (b) in the water layer (c) at the very bottom (d) in the oil layer
31. 31.⚖️ 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
32. 32.🍯 Is a pebble denser or less dense than water? (a) denser than water (b) less dense than water
33. 33.🔍 Which layer is on top in the honey-water-oil tower? (a) cooking oil (b) coloured water (c) honey (d) the spoon
34. 34.🔍 Which is the odd one out? (a) a cork (b) a coin (c) cooking oil (d) an ice cube
35. 35.🧺 Which of these is not needed for the density tower? (a) a spoon (b) water with food colour (c) cooking oil (d) a magnet
36. 36.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they become solid (b) they mix for ever (c) they separate again (d) they turn to honey
37. 37.🍯 Which of these is less dense than water? (a) a pebble (b) cooking oil (c) very salty water (d) honey
38. 38.🔍 Which is the odd one out? (a) very salty water (b) a pebble (c) a glass marble (d) air
39. 39.🍯 Is a cork denser or less dense than water? (a) denser than water (b) less dense than water
40. 40.🔍 Which is the odd one out? (a) cooking oil (b) a pebble (c) a ping-pong ball (d) a cork

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