Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 855 · 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.🍯 Which of these is denser than water? (a) a ping-pong ball (b) an ice cube (c) a glass marble (d) cooking oil
2. 2.⚖️ 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
3. 3.True or false: cooking oil is not needed for the density tower. (a) True (b) False
4. 4.🧺 Which of these is needed for the density tower? (a) a battery cell (b) turmeric powder (c) a spoon (d) a balloon
5. 5.🧺 Which of these is not needed for the density tower? (a) water with food colour (b) a balloon (c) cooking oil (d) a spoon
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 same three liquids is kept the same. (a) False (b) True
7. 7.🔍 Which is the odd one out? (a) a pebble (b) honey (c) a glass marble (d) a ping-pong ball
8. 8.⚖️ 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) how much of each liquid (b) the order of the layers (c) the same three liquids (d) the order of pouring
9. 9.🔍 Which is the odd one out? (a) an ice cube (b) a pebble (c) a glass marble (d) honey
10. 10.🧺 Which of these is needed for the density tower? (a) a mirror (b) a balloon (c) a tall clear glass (d) yeast
11. 11.⚖️ 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
12. 12.True or false: cooking oil is less dense than water. (a) False (b) True
13. 13.⚖️ 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
14. 14.⚖️ 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
15. 15.🛟 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
16. 16.True or false: a pebble is less dense than water. (a) True (b) False
17. 17.🧺 Do we need a balloon for the density tower? (a) not needed (b) needed
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 what we measure? (a) how much of each liquid (b) the order of the layers (c) the same three liquids (d) the order of pouring
19. 19.🧺 Which of these is not needed for the density tower? (a) cooking oil (b) water with food colour (c) a tall clear glass (d) a battery cell
20. 20.🔍 What do you see after pouring honey, water and oil into one glass? (a) one mixed colour (b) the glass gets hot (c) bubbles of gas (d) three separate layers
21. 21.🍯 Which of these is less dense than water? (a) honey (b) cooking oil (c) a coin (d) very salty water
22. 22.True or false: very salty water is less dense than water. (a) True (b) False
23. 23.🍯 Which of these is less dense than water? (a) a coin (b) a pebble (c) a cork (d) very salty water
24. 24.🍯 Which of these is less dense than water? (a) honey (b) a coin (c) an ice cube (d) very salty water
25. 25.True or false: yeast is needed for the density tower. (a) False (b) True
26. 26.True or false: an ice cube is denser than water. (a) False (b) True
27. 27.🧺 Which of these is needed for the density tower? (a) yeast (b) a balloon (c) a battery cell (d) cooking oil
28. 28.🧺 Do we need honey for the density tower? (a) needed (b) not needed
29. 29.🍯 Is honey denser or less dense than water? (a) less dense than water (b) denser than water
30. 30.🧺 Which of these is not needed for the density tower? (a) honey (b) a mirror (c) cooking oil (d) a spoon
31. 31.True or false: honey is denser than water. (a) True (b) False
32. 32.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they turn to honey (b) they mix for ever (c) they separate again (d) they become solid
33. 33.⚖️ 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 kept the same. (a) True (b) False
34. 34.🫗 Why does cooking oil float on top of water? (a) oil is heavier (b) oil is hot (c) oil is sticky (d) oil is less dense
35. 35.🔍 Which layer is on top in the honey-water-oil tower? (a) the spoon (b) coloured water (c) honey (d) cooking oil
36. 36.🍯 Is very salty water denser or less dense than water? (a) denser than water (b) less dense than water
37. 37.🔮 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) under the honey (d) on top of the oil
38. 38.⚖️ 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 keep it the same (c) we measure it
39. 39.🍯 Which of these is less dense than water? (a) a glass marble (b) air (c) a pebble (d) a coin
40. 40.True or false: a spoon is needed for the density tower. (a) True (b) False

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