Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 527 · 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.⚖️ 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) how much of each liquid (b) the order of the layers (c) the same three liquids (d) the order of pouring
2. 2.🔍 Which layer is on top in the honey-water-oil tower? (a) coloured water (b) cooking oil (c) the spoon (d) honey
3. 3.True or false: a tall clear glass is not needed for the density tower. (a) False (b) True
4. 4.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they turn to honey (b) they mix for ever (c) they become solid (d) they separate again
5. 5.True or false: a glass marble is denser than water. (a) False (b) True
6. 6.🧺 Which of these is not needed for the density tower? (a) a mirror (b) a tall clear glass (c) water with food colour (d) cooking oil
7. 7.⚖️ 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 the one thing we change. (a) True (b) False
8. 8.🧺 Do we need a balloon for the density tower? (a) needed (b) not needed
9. 9.True or false: a balloon is not needed for the density tower. (a) False (b) True
10. 10.🧺 Which of these is needed for the density tower? (a) a magnet (b) turmeric powder (c) water with food colour (d) yeast
11. 11.🍯 Is a pebble denser or less dense than water? (a) less dense than water (b) denser than water
12. 12.🫗 Why does cooking oil float on top of water? (a) oil is hot (b) oil is heavier (c) oil is sticky (d) oil is less dense
13. 13.🍯 Which of these is denser than water? (a) a ping-pong ball (b) cooking oil (c) a coin (d) a cork
14. 14.True or false: a coin is less dense than water. (a) True (b) False
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 same three liquids (b) the order of the layers (c) the order of pouring (d) the same glass
16. 16.True or false: a mirror is not needed for the density tower. (a) True (b) False
17. 17.⚖️ 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 what we measure. (a) False (b) True
18. 18.🍯 Is a ping-pong ball denser or less dense than water? (a) less dense than water (b) denser than water
19. 19.True or false: cooking oil is needed for the density tower. (a) True (b) False
20. 20.🔍 Which is the odd one out? (a) a cork (b) a pebble (c) air (d) an ice cube
21. 21.🧺 Which of these is needed for the density tower? (a) cooking oil (b) yeast (c) a balloon (d) a battery cell
22. 22.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) cooking oil (b) honey (c) a battery cell (d) a tall clear glass
23. 23.🍯 Which of these is less dense than water? (a) air (b) honey (c) a glass marble (d) a coin
24. 24.🔍 Which is the odd one out? (a) air (b) a coin (c) a pebble (d) a glass marble
25. 25.🔮 Predict: you gently drop a coin into the tower. Where does it end up? (a) in the water layer (b) on top of the oil (c) at the very bottom (d) in the oil layer
26. 26.🛟 Why should we wipe up spilled oil at once? (a) spilled oil is slippery (b) oil attracts magnets (c) oil turns into honey (d) oil makes it rain
27. 27.🔍 What do you see after pouring honey, water and oil into one glass? (a) one mixed colour (b) bubbles of gas (c) the glass gets hot (d) three separate layers
28. 28.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) under the honey (b) in the honey layer (c) in the water layer (d) on top of the oil
29. 29.🔍 Which is the odd one out? (a) a coin (b) cooking oil (c) a cork (d) a ping-pong ball
30. 30.🧺 Do we need a battery cell for the density tower? (a) needed (b) not needed
31. 31.🔍 Which is the odd one out? (a) very salty water (b) a cork (c) honey (d) a pebble
32. 32.🍯 Why does honey sink to the bottom of the glass? (a) it is the coldest (b) it is the stickiest (c) it is the densest (d) it is yellow
33. 33.⚖️ 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 change it (c) we keep it the same
34. 34.🧺 Do we need yeast for the density tower? (a) needed (b) not needed
35. 35.🧺 Which of these is not needed for the density tower? (a) a tall clear glass (b) water with food colour (c) a magnet (d) a spoon
36. 36.🧺 Which of these is not needed for the density tower? (a) turmeric powder (b) a spoon (c) a tall clear glass (d) honey
37. 37.True or false: a pebble is less dense than water. (a) True (b) False
38. 38.🧺 Which of these is needed for the density tower? (a) a mirror (b) honey (c) turmeric powder (d) a balloon
39. 39.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a spoon (b) water with food colour (c) yeast (d) a tall clear glass
40. 40.🍯 Is a coin denser or less dense than water? (a) less dense than water (b) denser than water

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