Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 81 · 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.🍯 Which of these is denser than water? (a) a cork (b) a glass marble (c) air (d) an ice cube
2. 2.True or false: very salty water is less dense than water. (a) True (b) False
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 order of pouring”? (a) we measure it (b) we keep it the same (c) we change it
4. 4.True or false: turmeric powder is not needed for the density tower. (a) False (b) True
5. 5.🔍 What do you see after pouring honey, water and oil into one glass? (a) the glass gets hot (b) one mixed colour (c) three separate layers (d) bubbles of gas
6. 6.🍯 Which of these is less dense than water? (a) a pebble (b) a ping-pong ball (c) honey (d) a glass marble
7. 7.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they turn to honey (b) they become solid (c) they separate again (d) they mix for ever
8. 8.⚖️ 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) how much of each liquid (c) the same glass (d) the order of pouring
9. 9.True or false: a spoon is needed for the density tower. (a) False (b) True
10. 10.🧺 Which of these is needed for the density tower? (a) a magnet (b) water with food colour (c) a balloon (d) turmeric powder
11. 11.🧺 Do we need water with food colour for the density tower? (a) not needed (b) needed
12. 12.🍯 Which of these is less dense than water? (a) a coin (b) very salty water (c) air (d) a pebble
13. 13.🍯 Which of these is denser than water? (a) a ping-pong ball (b) an ice cube (c) very salty water (d) air
14. 14.True or false: yeast is needed for the density tower. (a) True (b) False
15. 15.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a spoon (b) a tall clear glass (c) turmeric powder (d) cooking oil
16. 16.🔍 Which is the odd one out? (a) cooking oil (b) air (c) an ice cube (d) a glass marble
17. 17.🧺 Do we need cooking oil for the density tower? (a) not needed (b) needed
18. 18.🍯 Which of these is denser than water? (a) a cork (b) an ice cube (c) cooking oil (d) a coin
19. 19.True or false: a glass marble is denser than water. (a) True (b) False
20. 20.⚖️ 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 same three liquids (c) the order of pouring
21. 21.🔮 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) on top of the oil (d) under the honey
22. 22.🫗 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
23. 23.⚖️ 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 pouring (b) the same glass (c) the order of the layers (d) the same three liquids
24. 24.🔮 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
25. 25.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a tall clear glass (b) a mirror (c) water with food colour (d) cooking oil
26. 26.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) cooking oil (b) a spoon (c) a battery cell (d) a tall clear glass
27. 27.🧺 Do we need yeast for the density tower? (a) not needed (b) needed
28. 28.🧺 Which of these is needed for the density tower? (a) a balloon (b) a mirror (c) a spoon (d) a battery cell
29. 29.True or false: honey is not needed for the density tower. (a) True (b) False
30. 30.True or false: a balloon is needed for the density tower. (a) False (b) True
31. 31.🔍 Which layer is on top in the honey-water-oil tower? (a) cooking oil (b) the spoon (c) coloured water (d) honey
32. 32.🧺 Do we need a tall clear glass for the density tower? (a) not needed (b) needed
33. 33.⚖️ 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 kept the same. (a) False (b) True
34. 34.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a spoon (b) cooking oil (c) a balloon (d) water with food colour
35. 35.True or false: cooking oil is denser than water. (a) True (b) False
36. 36.🔍 Which is the odd one out? (a) an ice cube (b) a coin (c) a pebble (d) honey
37. 37.🧺 Which of these is not needed for the density tower? (a) cooking oil (b) a spoon (c) a balloon (d) water with food colour
38. 38.🧺 Which of these is not needed for the density tower? (a) yeast (b) honey (c) a tall clear glass (d) a spoon
39. 39.True or false: water with food colour is needed for the density tower. (a) True (b) False
40. 40.🍯 Is a ping-pong ball denser or less dense than water? (a) less dense than water (b) denser than water

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