Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 696 · 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 does cooking oil float on top of water? (a) oil is hot (b) oil is less dense (c) oil is sticky (d) oil is heavier
2. 2.True or false: a mirror is not needed for the density tower. (a) False (b) True
3. 3.⚖️ 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 keep it the same (b) we change it (c) we measure it
4. 4.True or false: a spoon is not needed for the density tower. (a) True (b) False
5. 5.⚖️ 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 measure it (c) we keep it the same
6. 6.🍯 Is an ice cube denser or less dense than water? (a) denser than water (b) less dense than water
7. 7.🔮 Predict: you gently drop a coin into the tower. Where does it end up? (a) at the very bottom (b) in the water layer (c) in the oil layer (d) on top of the oil
8. 8.True or false: a coin is less dense than water. (a) True (b) False
9. 9.🍯 Is a glass marble denser or less dense than water? (a) denser than water (b) less dense than water
10. 10.⚖️ 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 three liquids (b) the order of pouring (c) the order of the layers (d) how much of each liquid
11. 11.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a battery cell (b) a tall clear glass (c) a spoon (d) water with food colour
12. 12.🍯 Which of these is denser than water? (a) honey (b) an ice cube (c) a cork (d) cooking oil
13. 13.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) under the honey (b) in the water layer (c) on top of the oil (d) in the honey layer
14. 14.🧺 Which of these is not needed for the density tower? (a) water with food colour (b) a spoon (c) cooking oil (d) a mirror
15. 15.🍯 Which of these is less dense than water? (a) a pebble (b) honey (c) cooking oil (d) a coin
16. 16.🍯 Is very salty water denser or less dense than water? (a) less dense than water (b) denser than water
17. 17.🛟 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
18. 18.True or false: an ice cube is less dense than water. (a) True (b) False
19. 19.🔍 Which is the odd one out? (a) a cork (b) a coin (c) a glass marble (d) honey
20. 20.True or false: a pebble is less dense than water. (a) True (b) False
21. 21.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a tall clear glass (b) a magnet (c) water with food colour (d) cooking oil
22. 22.🧺 Which of these is needed for the density tower? (a) water with food colour (b) a magnet (c) a battery cell (d) a mirror
23. 23.True or false: honey is needed for the density tower. (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? 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
25. 25.🧺 Which of these is needed for the density tower? (a) a balloon (b) cooking oil (c) turmeric powder (d) yeast
26. 26.🔍 Which is the odd one out? (a) an ice cube (b) a cork (c) cooking oil (d) honey
27. 27.True or false: air is less dense than water. (a) False (b) True
28. 28.🍯 Which of these is less dense than water? (a) a glass marble (b) honey (c) a pebble (d) an ice cube
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 same three liquids (c) the order of pouring
30. 30.True or false: a pebble is denser than water. (a) False (b) True
31. 31.🧺 Do we need yeast for the density tower? (a) needed (b) not needed
32. 32.🧺 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
33. 33.🍯 Which of these is denser than water? (a) a glass marble (b) an ice cube (c) a cork (d) a ping-pong ball
34. 34.⚖️ 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) True (b) False
35. 35.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they mix for ever (b) they become solid (c) they turn to honey (d) they separate again
36. 36.True or false: turmeric powder is needed for the density tower. (a) True (b) False
37. 37.⚖️ 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 keep it the same (b) we change it (c) we measure it
38. 38.🧺 Which of these is not needed for the density tower? (a) a battery cell (b) cooking oil (c) a spoon (d) honey
39. 39.🍯 Why does honey sink to the bottom of the glass? (a) it is yellow (b) it is the stickiest (c) it is the densest (d) it is the coldest
40. 40.🍯 Is a cork denser or less dense than water? (a) less dense than water (b) denser than water

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