Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 41 · 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.🧺 Do we need cooking oil for the density tower? (a) not needed (b) needed
2. 2.True or false: an ice cube is denser than water. (a) False (b) True
3. 3.True or false: turmeric powder is not needed for the density tower. (a) False (b) True
4. 4.⚖️ 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
5. 5.🍯 Which of these is denser than water? (a) a cork (b) air (c) cooking oil (d) very salty water
6. 6.⚖️ 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) how much of each liquid (d) the same three liquids
7. 7.🔍 Which is the odd one out? (a) cooking oil (b) very salty water (c) a glass marble (d) a coin
8. 8.🧺 Which of these is needed for the density tower? (a) a magnet (b) a battery cell (c) yeast (d) a spoon
9. 9.🍯 Which of these is denser than water? (a) a coin (b) air (c) cooking oil (d) a ping-pong ball
10. 10.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a tall clear glass (b) a spoon (c) yeast (d) honey
11. 11.🔮 Predict: you gently drop a coin into the tower. Where does it end up? (a) in the water layer (b) in the oil layer (c) at the very bottom (d) on top of the oil
12. 12.🫗 Why does cooking oil float on top of water? (a) oil is hot (b) oil is less dense (c) oil is heavier (d) oil is sticky
13. 13.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a mirror (b) a spoon (c) cooking oil (d) a tall clear glass
14. 14.⚖️ 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) False (b) True
15. 15.🔍 Which is the odd one out? (a) cooking oil (b) a ping-pong ball (c) a cork (d) a glass marble
16. 16.🧺 Do we need a magnet for the density tower? (a) not needed (b) needed
17. 17.⚖️ 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 same three liquids (d) the order of the layers
18. 18.True or false: a tall clear glass is needed for the density tower. (a) True (b) False
19. 19.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a tall clear glass (b) a spoon (c) cooking oil (d) a magnet
20. 20.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) in the honey layer (b) in the water layer (c) on top of the oil (d) under the honey
21. 21.⚖️ 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 pouring (b) the order of the layers (c) the same glass
22. 22.🧺 Do we need a mirror for the density tower? (a) needed (b) not needed
23. 23.True or false: a magnet is needed for the density tower. (a) True (b) False
24. 24.🍯 Which of these is less dense than water? (a) a coin (b) a pebble (c) honey (d) a cork
25. 25.🔍 What do you see after pouring honey, water and oil into one glass? (a) one mixed colour (b) the glass gets hot (c) three separate layers (d) bubbles of gas
26. 26.🍯 Which of these is less dense than water? (a) a glass marble (b) very salty water (c) cooking oil (d) a pebble
27. 27.🍯 Is a pebble denser or less dense than water? (a) denser than water (b) less dense than water
28. 28.⚖️ 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
29. 29.⚖️ 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 measure it (c) we keep it the same
30. 30.True or false: very salty water is less dense than water. (a) False (b) True
31. 31.🍯 Is air denser or less dense than water? (a) less dense than water (b) denser than water
32. 32.🍯 Is cooking oil denser or less dense than water? (a) denser than water (b) less dense than water
33. 33.🧺 Do we need honey for the density tower? (a) not needed (b) needed
34. 34.🛟 Which rule keeps the density tower experiment safe? (a) taste each layer (b) throw the glass (c) do not lick the spoon (d) pour it on the floor
35. 35.True or false: a coin is denser than water. (a) False (b) True
36. 36.🧺 Do we need turmeric powder for the density tower? (a) needed (b) not needed
37. 37.🍯 Is a coin denser or less dense than water? (a) less dense than water (b) denser than water
38. 38.🔍 Which layer is on top in the honey-water-oil tower? (a) the spoon (b) honey (c) coloured water (d) cooking oil
39. 39.🧺 Which of these is needed for the density tower? (a) water with food colour (b) turmeric powder (c) a magnet (d) a battery cell
40. 40.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) honey (b) a spoon (c) a battery cell (d) a tall clear glass

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