Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 253 · 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? What do we do with “the same three liquids”? (a) we measure it (b) we keep it the same (c) we change it
2. 2.🔍 Which layer is on top in the honey-water-oil tower? (a) the spoon (b) cooking oil (c) honey (d) coloured water
3. 3.⚖️ 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
4. 4.True or false: a ping-pong ball is less dense than water. (a) True (b) False
5. 5.⚖️ 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 change it (c) we measure it
6. 6.🫗 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
7. 7.🔍 Which is the odd one out? (a) a cork (b) a coin (c) honey (d) a glass marble
8. 8.🧺 Which of these is not needed for the density tower? (a) water with food colour (b) a tall clear glass (c) honey (d) turmeric powder
9. 9.🍯 Is very salty water denser or less dense than water? (a) less dense than water (b) denser than water
10. 10.🧺 Do we need a mirror for the density tower? (a) needed (b) not needed
11. 11.True or false: a battery cell is needed for the density tower. (a) False (b) True
12. 12.🔍 Which is the odd one out? (a) a glass marble (b) a cork (c) a ping-pong ball (d) an ice cube
13. 13.📘 What does “dense” mean? (a) very hot (b) heavy for its size (c) very thin (d) very colourful
14. 14.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they mix for ever (b) they become solid (c) they separate again (d) they turn to honey
15. 15.True or false: a pebble is less dense than water. (a) False (b) True
16. 16.🔍 What do you see after pouring honey, water and oil into one glass? (a) three separate layers (b) the glass gets hot (c) bubbles of gas (d) one mixed colour
17. 17.True or false: very salty water is less dense than water. (a) True (b) False
18. 18.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a tall clear glass (b) a mirror (c) cooking oil (d) a spoon
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 order of the layers is what we measure. (a) False (b) True
20. 20.🧺 Do we need turmeric powder for the density tower? (a) needed (b) not needed
21. 21.True or false: a cork is less dense than water. (a) True (b) False
22. 22.🧺 Do we need a battery cell for the density tower? (a) not needed (b) needed
23. 23.🔍 Which is the odd one out? (a) very salty water (b) a ping-pong ball (c) honey (d) a pebble
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 order of the layers”? (a) we change it (b) we keep it the same (c) we measure it
25. 25.🔍 Which is the odd one out? (a) a coin (b) very salty water (c) honey (d) an ice cube
26. 26.🛟 Which rule keeps the density tower experiment safe? (a) pour it on the floor (b) do not lick the spoon (c) throw the glass (d) taste each layer
27. 27.🔮 Predict: you gently drop a coin into the tower. Where does it end up? (a) at the very bottom (b) in the oil layer (c) in the water layer (d) on top of the oil
28. 28.True or false: cooking oil is less dense than water. (a) True (b) False
29. 29.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a balloon (b) a tall clear glass (c) cooking oil (d) a spoon
30. 30.🛟 Why should we wipe up spilled oil at once? (a) oil makes it rain (b) oil turns into honey (c) oil attracts magnets (d) spilled oil is slippery
31. 31.⚖️ 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 same three liquids (c) how much of each liquid (d) the same glass
32. 32.🧺 Do we need water with food colour for the density tower? (a) not needed (b) needed
33. 33.True or false: water with food colour is needed for the density tower. (a) False (b) True
34. 34.🧺 Which of these is not needed for the density tower? (a) a mirror (b) a tall clear glass (c) a spoon (d) honey
35. 35.⚖️ 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
36. 36.🍯 Which of these is less dense than water? (a) very salty water (b) honey (c) a coin (d) a cork
37. 37.🔮 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
38. 38.True or false: a ping-pong ball is denser than water. (a) True (b) False
39. 39.🍯 Is a pebble denser or less dense than water? (a) denser than water (b) less dense than water
40. 40.True or false: a pebble is denser than water. (a) True (b) False

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