Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 409 · 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 kept the same? (a) the order of pouring (b) the order of the layers (c) the same three liquids
2. 2.True or false: very salty water is less dense than water. (a) True (b) False
3. 3.🧺 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) yeast (d) honey
4. 4.🔮 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
5. 5.🍯 Which of these is less dense than water? (a) a coin (b) a cork (c) a pebble (d) very salty water
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 the one thing we change? (a) the same three liquids (b) how much of each liquid (c) the order of the layers (d) the order of pouring
7. 7.🍯 Which of these is denser than water? (a) a cork (b) an ice cube (c) very salty water (d) air
8. 8.🔍 What do you see after pouring honey, water and oil into one glass? (a) one mixed colour (b) the glass gets hot (c) bubbles of gas (d) three separate layers
9. 9.🔍 Which is the odd one out? (a) cooking oil (b) an ice cube (c) a ping-pong ball (d) a pebble
10. 10.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) honey (b) water with food colour (c) a tall clear glass (d) a battery cell
11. 11.🧺 Do we need a balloon for the density tower? (a) needed (b) not needed
12. 12.🍯 Which of these is less dense than water? (a) honey (b) very salty water (c) air (d) a coin
13. 13.True or false: honey is less dense than water. (a) False (b) True
14. 14.True or false: cooking oil is not needed for the density tower. (a) True (b) False
15. 15.🫗 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
16. 16.🧺 Do we need yeast for the density tower? (a) needed (b) not needed
17. 17.True or false: a cork is denser than water. (a) False (b) True
18. 18.True or false: cooking oil is less dense than water. (a) True (b) False
19. 19.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) honey (b) a tall clear glass (c) a spoon (d) turmeric powder
20. 20.🍯 Is air denser or less dense than water? (a) denser than water (b) less dense than water
21. 21.🧺 Do we need a mirror for the density tower? (a) not needed (b) needed
22. 22.🔍 Which is the odd one out? (a) air (b) cooking oil (c) very salty water (d) a ping-pong ball
23. 23.🔮 Predict: you gently drop a coin into the tower. Where does it end up? (a) in the oil layer (b) at the very bottom (c) in the water layer (d) on top of the oil
24. 24.🍯 Which of these is denser than water? (a) a coin (b) a cork (c) a ping-pong ball (d) cooking oil
25. 25.True or false: honey is denser than water. (a) False (b) True
26. 26.🍯 Which of these is denser than water? (a) air (b) an ice cube (c) a ping-pong ball (d) honey
27. 27.🍯 Why does honey sink to the bottom of the glass? (a) it is yellow (b) it is the coldest (c) it is the stickiest (d) it is the densest
28. 28.⚖️ 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
29. 29.True or false: cooking oil is needed for the density tower. (a) False (b) True
30. 30.🍯 Which of these is less dense than water? (a) very salty water (b) a ping-pong ball (c) a pebble (d) a coin
31. 31.🔍 Which is the odd one out? (a) cooking oil (b) a coin (c) a pebble (d) a glass marble
32. 32.True or false: very salty water is denser than water. (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? What do we do with “how much of each liquid”? (a) we measure it (b) we change it (c) we keep it the same
34. 34.True or false: a coin is denser than water. (a) False (b) True
35. 35.🛟 Why should we wipe up spilled oil at once? (a) oil attracts magnets (b) spilled oil is slippery (c) oil makes it rain (d) oil turns into honey
36. 36.True or false: a magnet is needed for the density tower. (a) False (b) True
37. 37.True or false: a tall clear glass is not needed for the density tower. (a) False (b) True
38. 38.🧺 Which of these is needed for the density tower? (a) a balloon (b) a battery cell (c) a spoon (d) turmeric powder
39. 39.🔍 Which is the odd one out? (a) a glass marble (b) honey (c) a ping-pong ball (d) very salty water
40. 40.📘 What does “dense” mean? (a) very hot (b) very colourful (c) very thin (d) heavy for its size

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