Density Tower Experiment Worksheet

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

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