Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 693 · 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.🧺 Do we need turmeric powder for the density tower? (a) needed (b) not needed
2. 2.⚖️ 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
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 three liquids”? (a) we measure it (b) we keep it the same (c) we change it
4. 4.🧺 Which of these is needed for the density tower? (a) turmeric powder (b) a mirror (c) a balloon (d) cooking oil
5. 5.⚖️ 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) True (b) False
6. 6.🔍 Which is the odd one out? (a) an ice cube (b) air (c) a cork (d) a glass marble
7. 7.🍯 Which of these is denser than water? (a) a pebble (b) cooking oil (c) a cork (d) an ice cube
8. 8.True or false: a coin is less dense than water. (a) True (b) False
9. 9.🍯 Is air denser or less dense than water? (a) denser than water (b) less dense than water
10. 10.🧺 Which of these is not needed for the density tower? (a) a battery cell (b) water with food colour (c) a tall clear glass (d) a spoon
11. 11.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a spoon (b) water with food colour (c) a tall clear glass (d) a battery cell
12. 12.True or false: a balloon is not needed for the density tower. (a) True (b) False
13. 13.True or false: a battery cell is needed for the density tower. (a) True (b) False
14. 14.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) in the water layer (b) under the honey (c) in the honey layer (d) on top of the 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 change it (b) we measure it (c) we keep it the same
16. 16.🧺 Do we need a balloon for the density tower? (a) not needed (b) needed
17. 17.⚖️ 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
18. 18.🫗 Why does cooking oil float on top of water? (a) oil is sticky (b) oil is hot (c) oil is heavier (d) oil is less dense
19. 19.⚖️ 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 what we measure. (a) True (b) False
20. 20.🍯 Which of these is less dense than water? (a) honey (b) air (c) very salty water (d) a pebble
21. 21.True or false: water with food colour is needed for the density tower. (a) True (b) False
22. 22.🛟 Why should we wipe up spilled oil at once? (a) oil makes it rain (b) oil turns into honey (c) oil attracts magnets (d) spilled oil is slippery
23. 23.True or false: cooking oil is denser than water. (a) True (b) False
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 kept the same? (a) the order of pouring (b) the same three liquids (c) the order of the layers
25. 25.🧺 Do we need a mirror for the density tower? (a) needed (b) not needed
26. 26.🧺 Do we need a tall clear glass for the density tower? (a) not needed (b) needed
27. 27.🔍 Which is the odd one out? (a) very salty water (b) a cork (c) a coin (d) a pebble
28. 28.⚖️ 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 measure it (b) we change it (c) we keep it the same
29. 29.🧺 Do we need yeast for the density tower? (a) needed (b) not needed
30. 30.🛟 Which rule keeps the density tower experiment safe? (a) pour it on the floor (b) do not lick the spoon (c) taste each layer (d) throw the glass
31. 31.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a balloon (b) cooking oil (c) honey (d) water with food colour
32. 32.True or false: a mirror is needed for the density tower. (a) True (b) False
33. 33.🧺 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) cooking oil (d) yeast
34. 34.🍯 Why does honey sink to the bottom of the glass? (a) it is the stickiest (b) it is the coldest (c) it is yellow (d) it is the densest
35. 35.⚖️ 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
36. 36.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they mix for ever (b) they turn to honey (c) they become solid (d) they separate again
37. 37.🍯 Which of these is less dense than water? (a) cooking oil (b) a coin (c) a glass marble (d) a pebble
38. 38.🍯 Is a glass marble denser or less dense than water? (a) less dense than water (b) denser than water
39. 39.🍯 Is a pebble denser or less dense than water? (a) less dense than water (b) denser than water
40. 40.True or false: yeast is needed for the density tower. (a) True (b) False

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