Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 215 · 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.True or false: air is denser than water. (a) True (b) False
2. 2.🍯 Is a pebble denser or less dense than water? (a) less dense than water (b) denser than water
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 order of pouring”? (a) we keep it the same (b) we measure it (c) we change it
4. 4.🍯 Which of these is denser than water? (a) air (b) cooking oil (c) an ice cube (d) honey
5. 5.🛟 Why should we wipe up spilled oil at once? (a) oil turns into honey (b) oil attracts magnets (c) oil makes it rain (d) spilled oil is slippery
6. 6.⚖️ 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) False (b) True
7. 7.⚖️ 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
8. 8.🫗 Why does cooking oil float on top of water? (a) oil is hot (b) oil is sticky (c) oil is less dense (d) oil is heavier
9. 9.True or false: cooking oil is not needed for the density tower. (a) False (b) True
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 same glass (d) how much of each liquid
11. 11.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a tall clear glass (b) water with food colour (c) a spoon (d) a mirror
12. 12.True or false: a battery cell is needed for the density tower. (a) True (b) False
13. 13.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a tall clear glass (b) turmeric powder (c) honey (d) cooking oil
14. 14.🧺 Do we need cooking oil for the density tower? (a) needed (b) not needed
15. 15.🔮 Predict: you gently drop a coin into the tower. Where does it end up? (a) on top of the oil (b) in the oil layer (c) at the very bottom (d) in the water layer
16. 16.🧺 Which of these is needed for the density tower? (a) a magnet (b) a battery cell (c) a balloon (d) a spoon
17. 17.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they become solid (b) they turn to honey (c) they separate again (d) they mix for ever
18. 18.True or false: a ping-pong ball is denser than water. (a) False (b) True
19. 19.🍯 Which of these is less dense than water? (a) a cork (b) very salty water (c) a glass marble (d) a coin
20. 20.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) honey (b) a tall clear glass (c) yeast (d) water with food colour
21. 21.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) water with food colour (b) a battery cell (c) a spoon (d) cooking oil
22. 22.🍯 Why does honey sink to the bottom of the glass? (a) it is yellow (b) it is the coldest (c) it is the densest (d) it is the stickiest
23. 23.⚖️ 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
24. 24.🧺 Which of these is not needed for the density tower? (a) cooking oil (b) yeast (c) a spoon (d) water with food colour
25. 25.⚖️ 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) how much of each liquid (c) the order of pouring
26. 26.🔍 Which is the odd one out? (a) a cork (b) a coin (c) a glass marble (d) very salty water
27. 27.📘 What does “dense” mean? (a) very thin (b) very colourful (c) heavy for its size (d) very hot
28. 28.🍯 Which of these is denser than water? (a) a cork (b) air (c) cooking oil (d) a pebble
29. 29.🍯 Which of these is denser than water? (a) a ping-pong ball (b) very salty water (c) air (d) an ice cube
30. 30.⚖️ 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
31. 31.🔍 Which is the odd one out? (a) a glass marble (b) a ping-pong ball (c) air (d) an ice cube
32. 32.True or false: a cork is denser than water. (a) True (b) False
33. 33.🍯 Is air denser or less dense than water? (a) less dense than water (b) denser than water
34. 34.⚖️ 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 same glass (c) the order of the layers
35. 35.⚖️ 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
36. 36.⚖️ 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 same three liquids (b) the order of the layers (c) the order of pouring
37. 37.🍯 Is a glass marble denser or less dense than water? (a) less dense than water (b) denser than water
38. 38.True or false: yeast is not needed for the density tower. (a) False (b) True
39. 39.🧺 Which of these is not needed for the density tower? (a) a tall clear glass (b) honey (c) water with food colour (d) a battery cell
40. 40.🧺 Which of these is not needed for the density tower? (a) a magnet (b) water with food colour (c) a tall clear glass (d) honey

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