Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 563 · 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? What do we do with “how much of each liquid”? (a) we change it (b) we keep it the same (c) we measure it
2. 2.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) turmeric powder (b) a spoon (c) cooking oil (d) water with food colour
3. 3.⚖️ 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) how much of each liquid (b) the same glass (c) the order of pouring (d) the order of the layers
4. 4.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a tall clear glass (b) a spoon (c) honey (d) a magnet
5. 5.🍯 Why does honey sink to the bottom of the glass? (a) it is the stickiest (b) it is the coldest (c) it is the densest (d) it is yellow
6. 6.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they separate again (b) they become solid (c) they mix for ever (d) they turn to honey
7. 7.🍯 Is air denser or less dense than water? (a) denser than water (b) less dense than water
8. 8.⚖️ 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) True (b) False
9. 9.🫗 Why does cooking oil float on top of water? (a) oil is less dense (b) oil is sticky (c) oil is hot (d) oil is heavier
10. 10.🧺 Do we need yeast for the density tower? (a) needed (b) not needed
11. 11.🔍 Which layer is on top in the honey-water-oil tower? (a) honey (b) the spoon (c) coloured water (d) cooking oil
12. 12.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) in the honey layer (b) in the water layer (c) on top of the oil (d) under the honey
13. 13.🛟 Why should we wipe up spilled oil at once? (a) oil attracts magnets (b) oil turns into honey (c) oil makes it rain (d) spilled oil is slippery
14. 14.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) water with food colour (b) a mirror (c) a spoon (d) cooking oil
15. 15.⚖️ 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 measure it (b) we keep it the same (c) we change it
16. 16.⚖️ 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 kept the same. (a) False (b) True
17. 17.True or false: air is less dense than water. (a) True (b) False
18. 18.⚖️ 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 glass (b) the order of the layers (c) the order of pouring
19. 19.True or false: a pebble is denser than water. (a) False (b) True
20. 20.⚖️ 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 keep it the same (c) we measure it
21. 21.🧺 Do we need cooking oil for the density tower? (a) needed (b) not needed
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: the same glass is the one thing we change. (a) True (b) False
23. 23.🔍 Which is the odd one out? (a) air (b) a pebble (c) cooking oil (d) a ping-pong ball
24. 24.🧺 Do we need water with food colour for the density tower? (a) not needed (b) needed
25. 25.🍯 Which of these is denser than water? (a) air (b) an ice cube (c) cooking oil (d) a coin
26. 26.🍯 Is a coin denser or less dense than water? (a) denser than water (b) less dense than water
27. 27.🔍 Which is the odd one out? (a) honey (b) a pebble (c) very salty water (d) a cork
28. 28.🧺 Do we need a mirror for the density tower? (a) needed (b) not needed
29. 29.True or false: a magnet is not needed for the density tower. (a) False (b) True
30. 30.True or false: a tall clear glass is not needed for the density tower. (a) False (b) True
31. 31.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) water with food colour (b) honey (c) a spoon (d) a battery cell
32. 32.🍯 Is a glass marble denser or less dense than water? (a) denser than water (b) less dense than water
33. 33.🧺 Do we need honey for the density tower? (a) not needed (b) needed
34. 34.🔍 Which is the odd one out? (a) a ping-pong ball (b) very salty water (c) a glass marble (d) a pebble
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 order of pouring is the one thing we change. (a) False (b) True
36. 36.🧺 Do we need turmeric powder for the density tower? (a) needed (b) not needed
37. 37.🔮 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
38. 38.🛟 Which rule keeps the density tower experiment safe? (a) taste each layer (b) pour it on the floor (c) throw the glass (d) do not lick the spoon
39. 39.True or false: a cork is less dense than water. (a) False (b) True
40. 40.🧺 Which of these is needed for the density tower? (a) a battery cell (b) yeast (c) a mirror (d) water with food colour

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