Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 695 · 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.🔍 What do you see after pouring honey, water and oil into one glass? (a) bubbles of gas (b) the glass gets hot (c) three separate layers (d) one mixed colour
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: how much of each liquid is what we measure. (a) True (b) False
3. 3.🍯 Which of these is less dense than water? (a) a glass marble (b) a coin (c) an ice cube (d) a pebble
4. 4.🫗 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
5. 5.🧺 Which of these is needed for the density tower? (a) cooking oil (b) a balloon (c) a battery cell (d) a mirror
6. 6.🍯 Which of these is less dense than water? (a) honey (b) a pebble (c) a glass marble (d) air
7. 7.🍯 Which of these is less dense than water? (a) very salty water (b) a coin (c) a ping-pong ball (d) a pebble
8. 8.🔮 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
9. 9.🛟 Which rule keeps the density tower experiment safe? (a) taste each layer (b) do not lick the spoon (c) pour it on the floor (d) throw the glass
10. 10.🛟 Why should we wipe up spilled oil at once? (a) oil attracts magnets (b) oil makes it rain (c) spilled oil is slippery (d) oil turns into honey
11. 11.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a spoon (b) a battery cell (c) water with food colour (d) honey
12. 12.⚖️ 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 kept the same. (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: the order of pouring is kept the same. (a) False (b) True
14. 14.True or false: honey is less dense than water. (a) False (b) True
15. 15.True or false: an ice cube is less dense than water. (a) False (b) True
16. 16.🧺 Do we need a spoon for the density tower? (a) needed (b) not needed
17. 17.True or false: a battery cell is not needed for the density tower. (a) True (b) False
18. 18.🍯 Which of these is denser than water? (a) cooking oil (b) an ice cube (c) air (d) a pebble
19. 19.True or false: a magnet is needed for the density tower. (a) True (b) False
20. 20.🧺 Which of these is not needed for the density tower? (a) water with food colour (b) a spoon (c) a tall clear glass (d) a battery cell
21. 21.True or false: cooking oil is needed for the density tower. (a) False (b) True
22. 22.🍯 Is very salty water denser or less dense than water? (a) denser than water (b) less dense than water
23. 23.⚖️ 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) the same glass (b) how much of each liquid (c) the order of the layers (d) the order of pouring
24. 24.⚖️ 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
25. 25.🧺 Do we need yeast for the density tower? (a) needed (b) not needed
26. 26.True or false: honey is needed for the density tower. (a) False (b) True
27. 27.🧺 Which of these is not needed for the density tower? (a) a magnet (b) a tall clear glass (c) honey (d) cooking oil
28. 28.🍯 Is a cork denser or less dense than water? (a) less dense than water (b) denser than water
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: how much of each liquid is kept the same. (a) True (b) False
30. 30.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a mirror (b) a tall clear glass (c) cooking oil (d) honey
31. 31.🧺 Which of these is not needed for the density tower? (a) a spoon (b) honey (c) water with food colour (d) yeast
32. 32.🧺 Do we need a balloon for the density tower? (a) needed (b) not needed
33. 33.True or false: honey is denser than water. (a) True (b) False
34. 34.🧺 Do we need a battery cell for the density tower? (a) needed (b) not needed
35. 35.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) cooking oil (b) a tall clear glass (c) yeast (d) water with food colour
36. 36.⚖️ 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 change it (c) we keep it the same
37. 37.🔮 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) under the honey (d) in the water layer
38. 38.🧺 Do we need a tall clear glass for the density tower? (a) needed (b) not needed
39. 39.🔮 Predict: you gently drop a coin into the tower. Where does it end up? (a) in the water layer (b) at the very bottom (c) on top of the oil (d) in the oil layer
40. 40.True or false: an ice cube is denser than water. (a) True (b) False

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