Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 427 · 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? Which of these is the one thing we change? (a) the same glass (b) how much of each liquid (c) the order of pouring (d) the same three liquids
2. 2.True or false: a cork is denser than water. (a) True (b) False
3. 3.🧺 Do we need honey for the density tower? (a) needed (b) not needed
4. 4.🍯 Is cooking oil denser or less dense than water? (a) less dense than water (b) denser than water
5. 5.🧺 Which of these is not needed for the density tower? (a) a tall clear glass (b) a mirror (c) cooking oil (d) water with food colour
6. 6.⚖️ 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
7. 7.🧺 Do we need a magnet for the density tower? (a) not needed (b) needed
8. 8.🧺 Which of these is needed for the density tower? (a) turmeric powder (b) a spoon (c) a mirror (d) a battery cell
9. 9.True or false: water with food colour is needed for the density tower. (a) False (b) True
10. 10.🛟 Which rule keeps the density tower experiment safe? (a) pour it on the floor (b) taste each layer (c) do not lick the spoon (d) throw the glass
11. 11.🍯 Is a glass marble denser or less dense than water? (a) less dense than water (b) denser than water
12. 12.🍯 Which of these is denser than water? (a) cooking oil (b) an ice cube (c) a pebble (d) air
13. 13.🧺 Which of these is needed for the density tower? (a) a mirror (b) yeast (c) a magnet (d) cooking oil
14. 14.True or false: turmeric powder is not needed for the density tower. (a) False (b) True
15. 15.⚖️ 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
16. 16.🔍 Which is the odd one out? (a) a pebble (b) a coin (c) very salty water (d) cooking oil
17. 17.🍯 Is air denser or less dense than water? (a) less dense than water (b) denser than water
18. 18.🍯 Which of these is denser than water? (a) cooking oil (b) an ice cube (c) air (d) honey
19. 19.🔮 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
20. 20.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) water with food colour (b) a tall clear glass (c) honey (d) yeast
21. 21.True or false: a pebble is denser than water. (a) False (b) True
22. 22.🧺 Which of these is needed for the density tower? (a) yeast (b) a tall clear glass (c) a battery cell (d) a balloon
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 glass”? (a) we change it (b) we measure it (c) we keep it the same
24. 24.🧺 Do we need yeast for the density tower? (a) not needed (b) needed
25. 25.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) cooking oil (b) a spoon (c) turmeric powder (d) water with food colour
26. 26.True or false: a pebble is less dense than water. (a) False (b) True
27. 27.🔍 Which layer is on top in the honey-water-oil tower? (a) honey (b) coloured water (c) the spoon (d) cooking oil
28. 28.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) on top of the oil (b) in the honey layer (c) in the water layer (d) under the honey
29. 29.⚖️ 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 the one thing we change. (a) False (b) True
30. 30.🍯 Which of these is less dense than water? (a) a coin (b) a glass marble (c) a cork (d) very salty water
31. 31.🍯 Is an ice cube denser or less dense than water? (a) less dense than water (b) denser than water
32. 32.⚖️ 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
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: the same glass is kept the same. (a) False (b) True
34. 34.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) honey (b) cooking oil (c) a mirror (d) a spoon
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 order of the layers”? (a) we keep it the same (b) we measure it (c) we change it
36. 36.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they separate again (b) they turn to honey (c) they mix for ever (d) they become solid
37. 37.🫗 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
38. 38.True or false: a balloon is not needed for the density tower. (a) True (b) False
39. 39.📘 What does “dense” mean? (a) very colourful (b) heavy for its size (c) very thin (d) very hot
40. 40.🍯 Which of these is denser than water? (a) a ping-pong ball (b) a cork (c) a glass marble (d) an ice cube

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