Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 822 · 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.🛟 Why should we wipe up spilled oil at once? (a) oil makes it rain (b) oil attracts magnets (c) spilled oil is slippery (d) oil turns into honey
2. 2.🍯 Is air denser or less dense than water? (a) less dense than water (b) denser than water
3. 3.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a magnet (b) a tall clear glass (c) water with food colour (d) a spoon
4. 4.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) cooking oil (b) a battery cell (c) a spoon (d) a tall clear glass
5. 5.🛟 Which rule keeps the density tower experiment safe? (a) pour it on the floor (b) throw the glass (c) do not lick the spoon (d) taste each layer
6. 6.🔍 Which is the odd one out? (a) a ping-pong ball (b) cooking oil (c) an ice cube (d) very salty water
7. 7.🔍 Which is the odd one out? (a) a cork (b) a pebble (c) a ping-pong ball (d) air
8. 8.🧺 Which of these is not needed for the density tower? (a) cooking oil (b) honey (c) a tall clear glass (d) a mirror
9. 9.🍯 Which of these is less dense than water? (a) very salty water (b) a glass marble (c) honey (d) an ice cube
10. 10.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a balloon (b) a spoon (c) cooking oil (d) a tall clear glass
11. 11.⚖️ 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 glass (b) the same three liquids (c) the order of the layers (d) the order of pouring
12. 12.True or false: a balloon is not needed for the density tower. (a) False (b) True
13. 13.🔮 Predict: you gently drop a coin into the tower. Where does it end up? (a) on top of the oil (b) in the water layer (c) at the very bottom (d) in the oil layer
14. 14.🧺 Do we need a battery cell for the density tower? (a) not needed (b) needed
15. 15.⚖️ 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 the layers (b) the same three liquids (c) the order of pouring (d) how much of each liquid
16. 16.🧺 Which of these is needed for the density tower? (a) a tall clear glass (b) a battery cell (c) a balloon (d) a mirror
17. 17.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) on top of the oil (b) in the honey layer (c) in the water layer (d) under the honey
18. 18.🧺 Do we need honey for the density tower? (a) needed (b) not needed
19. 19.🧺 Do we need a magnet for the density tower? (a) not needed (b) needed
20. 20.🧺 Which of these is not needed for the density tower? (a) a spoon (b) cooking oil (c) a tall clear glass (d) a magnet
21. 21.🧺 Which of these is not needed for the density tower? (a) cooking oil (b) a spoon (c) a battery cell (d) honey
22. 22.🧺 Do we need water with food colour for the density tower? (a) not needed (b) needed
23. 23.True or false: honey is less dense than water. (a) False (b) True
24. 24.⚖️ 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 what we measure. (a) True (b) False
25. 25.⚖️ 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 measure it (b) we keep it the same (c) we change it
26. 26.🔍 Which layer is on top in the honey-water-oil tower? (a) cooking oil (b) honey (c) coloured water (d) the spoon
27. 27.🧺 Do we need a balloon for the density tower? (a) not needed (b) needed
28. 28.True or false: a cork is denser than water. (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? Which of these is kept the same? (a) the order of the layers (b) the order of pouring (c) the same three liquids
30. 30.⚖️ 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 order of pouring (c) the same glass
31. 31.True or false: water with food colour is not needed for the density tower. (a) True (b) False
32. 32.True or false: a pebble is denser than water. (a) True (b) False
33. 33.🫗 Why does cooking oil float on top of water? (a) oil is sticky (b) oil is less dense (c) oil is heavier (d) oil is hot
34. 34.🔍 What do you see after pouring honey, water and oil into one glass? (a) bubbles of gas (b) the glass gets hot (c) one mixed colour (d) three separate layers
35. 35.🧺 Which of these is needed for the density tower? (a) honey (b) a battery cell (c) yeast (d) a magnet
36. 36.⚖️ 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 “how much of each liquid”? (a) we measure it (b) we change it (c) we keep it the same
37. 37.🧺 Do we need a mirror for the density tower? (a) needed (b) not needed
38. 38.True or false: honey is not needed for the density tower. (a) False (b) True
39. 39.⚖️ 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 change it (b) we measure it (c) we keep it the same
40. 40.True or false: a glass marble is less dense than water. (a) False (b) True

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