Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 821 · 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.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they separate again (b) they turn to honey (c) they become solid (d) they mix for ever
2. 2.🍯 Which of these is denser than water? (a) a cork (b) air (c) very salty water (d) cooking oil
3. 3.🔍 Which is the odd one out? (a) cooking oil (b) air (c) a ping-pong ball (d) a glass marble
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 “how much of each liquid”? (a) we change it (b) we measure it (c) we keep it the same
5. 5.🧺 Which of these is not needed for the density tower? (a) honey (b) a spoon (c) water with food colour (d) a magnet
6. 6.🔮 Predict: you gently drop a coin into the tower. Where does it end up? (a) in the oil layer (b) on top of the oil (c) at the very bottom (d) in the water layer
7. 7.🔍 Which is the odd one out? (a) air (b) a pebble (c) honey (d) a glass marble
8. 8.🍯 Why does honey sink to the bottom of the glass? (a) it is the stickiest (b) it is the densest (c) it is yellow (d) it is the coldest
9. 9.True or false: water with food colour is needed for the density tower. (a) False (b) True
10. 10.True or false: a mirror is not needed for the density tower. (a) False (b) True
11. 11.🍯 Is a ping-pong ball denser or less dense than water? (a) denser than water (b) less dense than water
12. 12.🧺 Do we need a magnet for the density tower? (a) needed (b) not needed
13. 13.True or false: a coin is less dense than water. (a) False (b) True
14. 14.⚖️ 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 measure it (b) we change it (c) we keep it the same
15. 15.⚖️ 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) True (b) False
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 what we measure? (a) the same glass (b) the order of the layers (c) the same three liquids (d) the order of pouring
17. 17.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) honey (b) a spoon (c) yeast (d) cooking oil
18. 18.⚖️ 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 change it (b) we measure it (c) we keep it the same
19. 19.🍯 Is cooking oil denser or less dense than water? (a) less dense than water (b) denser than water
20. 20.True or false: a pebble is denser than water. (a) True (b) False
21. 21.True or false: turmeric powder is needed for the density tower. (a) False (b) True
22. 22.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? True or false: how much of each liquid is what we measure. (a) False (b) True
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 the one thing we change? (a) the order of the layers (b) the same three liquids (c) the order of pouring (d) how much of each liquid
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 same glass is kept the same. (a) False (b) True
25. 25.True or false: cooking oil is denser than water. (a) True (b) False
26. 26.🛟 Why should we wipe up spilled oil at once? (a) oil turns into honey (b) spilled oil is slippery (c) oil attracts magnets (d) oil makes it rain
27. 27.🧺 Which of these is not needed for the density tower? (a) water with food colour (b) a tall clear glass (c) honey (d) a balloon
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 what we measure. (a) False (b) True
29. 29.🍯 Is a pebble denser or less dense than water? (a) denser than water (b) less dense than water
30. 30.🍯 Which of these is denser than water? (a) a ping-pong ball (b) an ice cube (c) air (d) a coin
31. 31.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a spoon (b) honey (c) a mirror (d) cooking oil
32. 32.⚖️ 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) False (b) True
33. 33.🧺 Which of these is needed for the density tower? (a) a battery cell (b) a magnet (c) a balloon (d) a tall clear glass
34. 34.🧺 Do we need a battery cell for the density tower? (a) needed (b) not needed
35. 35.True or false: a ping-pong ball is denser than water. (a) True (b) False
36. 36.🍯 Which of these is denser than water? (a) air (b) cooking oil (c) honey (d) a cork
37. 37.🧺 Do we need a balloon for the density tower? (a) not needed (b) needed
38. 38.🧺 Do we need a mirror for the density tower? (a) needed (b) not needed
39. 39.True or false: an ice cube is denser than water. (a) False (b) True
40. 40.⚖️ 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 keep it the same (b) we change it (c) we measure it

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