Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 101 · 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.True or false: very salty water is denser than water. (a) True (b) False
2. 2.🛟 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
3. 3.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they become solid (b) they turn to honey (c) they separate again (d) they mix for ever
4. 4.⚖️ 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 what we measure. (a) False (b) True
5. 5.🛟 Why should we wipe up spilled oil at once? (a) oil makes it rain (b) oil attracts magnets (c) oil turns into honey (d) spilled oil is slippery
6. 6.⚖️ 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 order of the layers (c) the same three liquids
7. 7.⚖️ 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 order of pouring (c) how much of each liquid
8. 8.True or false: honey is not needed for the density tower. (a) False (b) True
9. 9.🔍 Which is the odd one out? (a) a glass marble (b) cooking oil (c) a cork (d) a ping-pong ball
10. 10.True or false: cooking oil is needed for the density tower. (a) False (b) True
11. 11.🍯 Which of these is less dense than water? (a) very salty water (b) a coin (c) a pebble (d) air
12. 12.🍯 Which of these is denser than water? (a) air (b) cooking oil (c) honey (d) a cork
13. 13.🔍 Which is the odd one out? (a) air (b) a ping-pong ball (c) a coin (d) cooking oil
14. 14.🧺 Do we need water with food colour for the density tower? (a) not needed (b) needed
15. 15.🍯 Why does honey sink to the bottom of the glass? (a) it is the stickiest (b) it is the densest (c) it is yellow (d) it is the coldest
16. 16.True or false: a glass marble is denser than water. (a) False (b) True
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 pouring”? (a) we measure it (b) we change it (c) we keep it the same
18. 18.🔍 Which is the odd one out? (a) an ice cube (b) a glass marble (c) a pebble (d) honey
19. 19.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a tall clear glass (b) honey (c) water with food colour (d) a magnet
20. 20.🧺 Do we need honey for the density tower? (a) needed (b) not needed
21. 21.🧺 Which of these is not needed for the density tower? (a) a spoon (b) cooking oil (c) a mirror (d) a tall clear glass
22. 22.🧺 Do we need a spoon for the density tower? (a) needed (b) not needed
23. 23.🧺 Do we need a mirror for the density tower? (a) needed (b) not needed
24. 24.⚖️ 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
25. 25.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) under the honey (b) in the honey layer (c) in the water layer (d) on top of the oil
26. 26.🍯 Is air denser or less dense than water? (a) denser than water (b) less dense than water
27. 27.⚖️ 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
28. 28.🧺 Do we need yeast for the density tower? (a) not needed (b) needed
29. 29.🍯 Which of these is less dense than water? (a) cooking oil (b) a glass marble (c) very salty water (d) a pebble
30. 30.True or false: an ice cube is less dense than water. (a) False (b) True
31. 31.🧺 Which of these is needed for the density tower? (a) turmeric powder (b) a battery cell (c) water with food colour (d) a balloon
32. 32.⚖️ 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 keep it the same (b) we measure it (c) we change it
33. 33.🧺 Which of these is not needed for the density tower? (a) cooking oil (b) a battery cell (c) water with food colour (d) a spoon
34. 34.⚖️ 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 keep it the same (c) we measure it
35. 35.🔮 Predict: you gently drop a coin into the tower. Where does it end up? (a) in the water layer (b) on top of the oil (c) in the oil layer (d) at the very bottom
36. 36.🫗 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
37. 37.🔍 Which is the odd one out? (a) honey (b) a glass marble (c) very salty water (d) a ping-pong ball
38. 38.⚖️ 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
39. 39.True or false: water with food colour is not needed for the density tower. (a) True (b) False
40. 40.🧺 Which of these is not needed for the density tower? (a) a tall clear glass (b) yeast (c) water with food colour (d) cooking oil

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