Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 144 · 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: cooking oil is denser than water. (a) False (b) True
2. 2.🧺 Which of these is needed for the density tower? (a) turmeric powder (b) a balloon (c) a mirror (d) water with food colour
3. 3.True or false: a ping-pong ball is denser than water. (a) True (b) False
4. 4.🔍 What do you see after pouring honey, water and oil into one glass? (a) the glass gets hot (b) bubbles of gas (c) one mixed colour (d) three separate layers
5. 5.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) honey (b) water with food colour (c) a tall clear glass (d) a battery cell
6. 6.🔍 Which is the odd one out? (a) a coin (b) a glass marble (c) very salty water (d) a ping-pong ball
7. 7.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) honey (b) a mirror (c) cooking oil (d) water with food colour
8. 8.🧺 Which of these is needed for the density tower? (a) a battery cell (b) cooking oil (c) a mirror (d) yeast
9. 9.🔍 Which layer is on top in the honey-water-oil tower? (a) honey (b) the spoon (c) cooking oil (d) coloured water
10. 10.True or false: air is less dense than water. (a) False (b) True
11. 11.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) in the water layer (b) in the honey layer (c) under the honey (d) on top of the oil
12. 12.🍯 Is a cork denser or less dense than water? (a) denser than water (b) less dense than water
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 same three liquids”? (a) we measure it (b) we keep it the same (c) we change it
14. 14.🧺 Do we need a balloon for the density tower? (a) not needed (b) needed
15. 15.🔍 Which is the odd one out? (a) air (b) a ping-pong ball (c) a coin (d) an ice cube
16. 16.🧺 Do we need a battery cell for the density tower? (a) not needed (b) needed
17. 17.🍯 Is a glass marble denser or less dense than water? (a) denser than water (b) less dense than water
18. 18.⚖️ 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 the layers (c) how much of each liquid (d) the order of pouring
19. 19.⚖️ 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) the order of pouring (c) the same glass (d) the order of the layers
20. 20.True or false: a mirror is not needed for the density tower. (a) False (b) True
21. 21.🫗 Why does cooking oil float on top of water? (a) oil is less dense (b) oil is hot (c) oil is heavier (d) oil is sticky
22. 22.🧺 Do we need a tall clear glass for the density tower? (a) needed (b) not needed
23. 23.🍯 Is cooking oil denser or less dense than water? (a) denser than water (b) less dense than water
24. 24.🍯 Which of these is less dense than water? (a) a pebble (b) cooking oil (c) honey (d) a coin
25. 25.🔍 Which is the odd one out? (a) cooking oil (b) an ice cube (c) air (d) a pebble
26. 26.True or false: cooking oil is needed for the density tower. (a) True (b) False
27. 27.🍯 Which of these is less dense than water? (a) a pebble (b) a glass marble (c) air (d) a coin
28. 28.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) turmeric powder (b) cooking oil (c) water with food colour (d) a spoon
29. 29.📘 What does “dense” mean? (a) very colourful (b) heavy for its size (c) very hot (d) very thin
30. 30.🍯 Is an ice cube denser or less dense than water? (a) denser than water (b) less dense than water
31. 31.🍯 Is a coin denser or less dense than water? (a) less dense than water (b) denser than water
32. 32.🧺 Which of these is not needed for the density tower? (a) cooking oil (b) a mirror (c) a spoon (d) a tall clear glass
33. 33.🧺 Do we need honey for the density tower? (a) needed (b) not needed
34. 34.🔮 Predict: you gently drop a coin into the tower. Where does it end up? (a) at the very bottom (b) in the water layer (c) in the oil layer (d) on top of the oil
35. 35.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a spoon (b) honey (c) yeast (d) a tall clear glass
36. 36.True or false: a ping-pong ball is less dense than water. (a) False (b) True
37. 37.🧺 Do we need cooking oil for the density tower? (a) not needed (b) needed
38. 38.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they mix for ever (b) they separate again (c) they become solid (d) they turn to honey
39. 39.🧺 Which of these is needed for the density tower? (a) turmeric powder (b) honey (c) a magnet (d) yeast
40. 40.True or false: a balloon is not needed for the density tower. (a) False (b) True

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