Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 899 · 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.⚖️ 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 the one thing we change. (a) False (b) True
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 order of pouring (b) the same three liquids (c) the same glass (d) the order of the layers
3. 3.🍯 Is very salty water denser or less dense than water? (a) less dense than water (b) denser than water
4. 4.🫗 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
5. 5.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) turmeric powder (b) honey (c) a tall clear glass (d) cooking oil
6. 6.True or false: air is less dense than water. (a) False (b) True
7. 7.True or false: a battery cell is not needed for the density tower. (a) False (b) True
8. 8.🧺 Do we need a spoon for the density tower? (a) not needed (b) needed
9. 9.True or false: a spoon is not needed for the density tower. (a) False (b) True
10. 10.🧺 Which of these is not needed for the density tower? (a) water with food colour (b) a spoon (c) cooking oil (d) a mirror
11. 11.🍯 Is honey denser or less dense than water? (a) denser than water (b) less dense than water
12. 12.True or false: an ice cube is less dense than water. (a) False (b) True
13. 13.True or false: yeast 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? True or false: the same three liquids is the one thing we change. (a) False (b) True
15. 15.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they turn to honey (b) they separate again (c) they become solid (d) they mix for ever
16. 16.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) yeast (b) a spoon (c) a tall clear glass (d) water with food colour
17. 17.🍯 Is air denser or less dense than water? (a) denser than water (b) less dense than water
18. 18.🔮 Predict: you gently drop a coin into the tower. Where does it end up? (a) on top of the oil (b) at the very bottom (c) in the oil layer (d) in the water layer
19. 19.⚖️ 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
20. 20.🧺 Do we need turmeric powder for the density tower? (a) not needed (b) needed
21. 21.🍯 Which of these is less dense than water? (a) a pebble (b) a glass marble (c) very salty water (d) a ping-pong ball
22. 22.🛟 Which rule keeps the density tower experiment safe? (a) throw the glass (b) taste each layer (c) do not lick the spoon (d) pour it on the floor
23. 23.⚖️ 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 keep it the same (b) we measure it (c) we change it
24. 24.🔍 Which is the odd one out? (a) a coin (b) a cork (c) a pebble (d) honey
25. 25.True or false: very salty water is less dense than water. (a) True (b) False
26. 26.🧺 Do we need a tall clear glass for the density tower? (a) not needed (b) needed
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 kept the same? (a) the same glass (b) the order of pouring (c) the order of the layers
28. 28.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) on top of the oil (b) in the honey layer (c) under the honey (d) in the water layer
29. 29.True or false: a magnet is not needed for the density tower. (a) True (b) False
30. 30.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) cooking oil (b) a tall clear glass (c) a battery cell (d) honey
31. 31.True or false: cooking oil is needed for the density tower. (a) True (b) False
32. 32.True or false: a coin is denser than water. (a) True (b) False
33. 33.⚖️ 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 keep it the same (c) we change it
34. 34.🧺 Do we need a battery cell for the density tower? (a) not needed (b) needed
35. 35.🍯 Is a pebble denser or less dense than water? (a) less dense than water (b) denser than water
36. 36.⚖️ 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 keep it the same (c) we measure it
37. 37.🧺 Do we need a balloon for the density tower? (a) needed (b) not needed
38. 38.🍯 Is a cork denser or less dense than water? (a) denser than water (b) less dense than water
39. 39.True or false: a spoon is needed for the density tower. (a) False (b) True
40. 40.🔍 Which layer is on top in the honey-water-oil tower? (a) coloured water (b) honey (c) the spoon (d) cooking oil

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