Density Tower Experiment Worksheet

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

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