Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 311 · 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.True or false: a pebble is less dense than water. (a) False (b) True
2. 2.🧺 Which of these is needed for the density tower? (a) a mirror (b) a tall clear glass (c) a balloon (d) a battery cell
3. 3.🧺 Do we need a tall clear glass for the density tower? (a) not needed (b) needed
4. 4.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they turn to honey (b) they mix for ever (c) they become solid (d) they separate again
5. 5.🧺 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
6. 6.🍯 Which of these is denser than water? (a) cooking oil (b) air (c) an ice cube (d) a pebble
7. 7.🍯 Is cooking oil denser or less dense than water? (a) denser than water (b) less dense than water
8. 8.🔍 Which is the odd one out? (a) very salty water (b) cooking oil (c) a glass marble (d) a pebble
9. 9.🛟 Which rule keeps the density tower experiment safe? (a) throw the glass (b) do not lick the spoon (c) pour it on the floor (d) taste each layer
10. 10.⚖️ 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 the layers (b) the order of pouring (c) the same glass (d) the same three liquids
11. 11.True or false: a magnet is needed for the density tower. (a) False (b) True
12. 12.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) under the honey (b) in the honey layer (c) on top of the oil (d) in the water layer
13. 13.⚖️ 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 same three liquids (b) how much of each liquid (c) the order of the layers (d) the same glass
14. 14.⚖️ 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
15. 15.🔍 Which is the odd one out? (a) very salty water (b) an ice cube (c) a pebble (d) a glass marble
16. 16.🧺 Do we need a balloon for the density tower? (a) not needed (b) needed
17. 17.True or false: honey is needed for the density tower. (a) False (b) True
18. 18.⚖️ 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) False (b) True
19. 19.🔍 Which layer is on top in the honey-water-oil tower? (a) the spoon (b) cooking oil (c) honey (d) coloured water
20. 20.True or false: a spoon is not needed for the density tower. (a) True (b) False
21. 21.🍯 Which of these is less dense than water? (a) a glass marble (b) a ping-pong ball (c) honey (d) a pebble
22. 22.🔮 Predict: you gently drop a coin into the tower. Where does it end up? (a) in the oil layer (b) in the water layer (c) at the very bottom (d) on top of the oil
23. 23.True or false: an ice cube is denser than water. (a) False (b) True
24. 24.🧺 Do we need water with food colour for the density tower? (a) needed (b) not needed
25. 25.🍯 Which of these is denser than water? (a) cooking oil (b) a glass marble (c) air (d) a cork
26. 26.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) honey (b) a tall clear glass (c) turmeric powder (d) cooking oil
27. 27.🍯 Why does honey sink to the bottom of the glass? (a) it is the stickiest (b) it is the coldest (c) it is yellow (d) it is the densest
28. 28.True or false: honey is less dense than water. (a) True (b) False
29. 29.⚖️ 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 the one thing we change. (a) True (b) False
30. 30.True or false: a pebble is denser than water. (a) False (b) True
31. 31.🫗 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
32. 32.📘 What does “dense” mean? (a) very thin (b) very colourful (c) heavy for its size (d) very hot
33. 33.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) cooking oil (b) a tall clear glass (c) a spoon (d) a mirror
34. 34.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) honey (b) cooking oil (c) water with food colour (d) a magnet
35. 35.🧺 Do we need honey for the density tower? (a) not needed (b) needed
36. 36.🍯 Which of these is less dense than water? (a) a cork (b) honey (c) a glass marble (d) a pebble
37. 37.True or false: cooking oil is denser than water. (a) False (b) True
38. 38.🧺 Which of these is not needed for the density tower? (a) honey (b) water with food colour (c) turmeric powder (d) cooking oil
39. 39.True or false: a cork is denser than water. (a) True (b) False
40. 40.True or false: water with food colour is needed for the density tower. (a) False (b) True

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