Density Tower Experiment Worksheet

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

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