Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 285 · 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 hot (d) oil is sticky
2. 2.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a spoon (b) cooking oil (c) honey (d) a balloon
3. 3.🧺 Which of these is not needed for the density tower? (a) water with food colour (b) a balloon (c) a tall clear glass (d) a spoon
4. 4.🧺 Which of these is needed for the density tower? (a) a magnet (b) turmeric powder (c) honey (d) a mirror
5. 5.🧺 Which of these is not needed for the density tower? (a) a tall clear glass (b) water with food colour (c) a magnet (d) a spoon
6. 6.True or false: a ping-pong ball is less dense than water. (a) False (b) True
7. 7.True or false: very salty water is denser than water. (a) False (b) True
8. 8.🔍 Which is the odd one out? (a) a glass marble (b) a ping-pong ball (c) very salty water (d) a pebble
9. 9.True or false: a tall clear glass is needed for the density tower. (a) True (b) False
10. 10.📘 What does “dense” mean? (a) very hot (b) heavy for its size (c) very colourful (d) very thin
11. 11.🔮 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) in the oil layer (d) at the very bottom
12. 12.True or false: a mirror is needed for the density tower. (a) True (b) False
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 “the order of pouring”? (a) we measure it (b) we keep it the same (c) we change it
14. 14.🛟 Why should we wipe up spilled oil at once? (a) oil turns into honey (b) oil makes it rain (c) oil attracts magnets (d) spilled oil is slippery
15. 15.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) water with food colour (b) a spoon (c) a magnet (d) honey
16. 16.🔍 Which is the odd one out? (a) very salty water (b) a glass marble (c) a pebble (d) an ice cube
17. 17.🍯 Is a pebble denser or less dense than water? (a) less dense than water (b) denser than water
18. 18.🧺 Which of these is needed for the density tower? (a) a magnet (b) a battery cell (c) a balloon (d) a tall clear glass
19. 19.True or false: a spoon is needed for the density tower. (a) False (b) True
20. 20.🛟 Which rule keeps the density tower experiment safe? (a) pour it on the floor (b) throw the glass (c) do not lick the spoon (d) taste each layer
21. 21.⚖️ 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 what we measure. (a) False (b) True
22. 22.⚖️ 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 order of the layers (b) the order of pouring (c) the same glass
23. 23.🍯 Which of these is less dense than water? (a) a pebble (b) an ice cube (c) very salty water (d) a coin
24. 24.⚖️ 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 keep it the same (b) we measure it (c) we change it
25. 25.True or false: a magnet is not needed for the density tower. (a) True (b) False
26. 26.🔍 Which is the odd one out? (a) honey (b) cooking oil (c) a coin (d) a glass marble
27. 27.🔍 Which layer is on top in the honey-water-oil tower? (a) coloured water (b) honey (c) cooking oil (d) the spoon
28. 28.⚖️ 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 glass (b) the same three liquids (c) how much of each liquid (d) the order of pouring
29. 29.🍯 Which of these is less dense than water? (a) a pebble (b) cooking oil (c) a glass marble (d) honey
30. 30.🔍 Which is the odd one out? (a) an ice cube (b) a pebble (c) air (d) a cork
31. 31.⚖️ 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 measure it (b) we keep it the same (c) we change it
32. 32.⚖️ 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
33. 33.True or false: yeast is not needed for the density tower. (a) False (b) True
34. 34.⚖️ 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 change it (c) we measure it
35. 35.True or false: a coin is less dense than water. (a) True (b) False
36. 36.⚖️ 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 kept the same. (a) True (b) False
37. 37.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) under the honey (b) in the honey layer (c) in the water layer (d) on top of the oil
38. 38.🔍 Which is the odd one out? (a) cooking oil (b) air (c) a cork (d) a glass marble
39. 39.🧺 Do we need water with food colour for the density tower? (a) not needed (b) needed
40. 40.True or false: an ice cube is denser than water. (a) False (b) True

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