Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 120 · 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.🔮 Predict: you gently drop a coin into the tower. Where does it end up? (a) on top of the oil (b) in the water layer (c) at the very bottom (d) in the oil layer
2. 2.True or false: a ping-pong ball is less dense than water. (a) False (b) True
3. 3.🍯 Is air denser or less dense than water? (a) denser than water (b) less dense than water
4. 4.🍯 Is a glass marble denser or less dense than water? (a) denser than water (b) less dense than water
5. 5.True or false: yeast is not needed for the density tower. (a) True (b) False
6. 6.True or false: honey is needed for the density tower. (a) False (b) True
7. 7.⚖️ 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 what we measure. (a) True (b) False
8. 8.🧺 Do we need a spoon for the density tower? (a) not needed (b) needed
9. 9.🧺 Which of these is needed for the density tower? (a) a battery cell (b) cooking oil (c) turmeric powder (d) a magnet
10. 10.📘 What does “dense” mean? (a) very hot (b) very colourful (c) very thin (d) heavy for its size
11. 11.🧺 Do we need honey for the density tower? (a) needed (b) not needed
12. 12.🧺 Which of these is needed for the density tower? (a) yeast (b) honey (c) a magnet (d) a mirror
13. 13.🛟 Which rule keeps the density tower experiment safe? (a) pour it on the floor (b) do not lick the spoon (c) throw the glass (d) taste each layer
14. 14.🛟 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
15. 15.🧺 Do we need a tall clear glass for the density tower? (a) not needed (b) needed
16. 16.🍯 Is cooking oil denser or less dense than water? (a) denser than water (b) less dense than water
17. 17.🔍 Which is the odd one out? (a) honey (b) a cork (c) cooking oil (d) an ice cube
18. 18.🍯 Is a coin denser or less dense than water? (a) less dense than water (b) denser than water
19. 19.🔍 Which is the odd one out? (a) a coin (b) a glass marble (c) honey (d) cooking oil
20. 20.⚖️ 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
21. 21.⚖️ 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 glass (b) the same three liquids (c) how much of each liquid (d) the order of pouring
22. 22.🧺 Which of these is needed for the density tower? (a) turmeric powder (b) a balloon (c) a spoon (d) a mirror
23. 23.True or false: water with food colour is needed for the density tower. (a) True (b) False
24. 24.True or false: a battery cell is not needed for the density tower. (a) True (b) False
25. 25.🍯 Is honey denser or less dense than water? (a) denser than water (b) less dense than water
26. 26.🍯 Which of these is denser than water? (a) a glass marble (b) cooking oil (c) air (d) a ping-pong ball
27. 27.🍯 Which of these is less dense than water? (a) a cork (b) very salty water (c) a pebble (d) a glass marble
28. 28.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) honey (b) cooking oil (c) a mirror (d) water with food colour
29. 29.🫗 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
30. 30.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a spoon (b) a tall clear glass (c) cooking oil (d) a balloon
31. 31.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a spoon (b) cooking oil (c) a tall clear glass (d) turmeric powder
32. 32.⚖️ 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
33. 33.🔍 Which is the odd one out? (a) cooking oil (b) air (c) a cork (d) a coin
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 “how much of each liquid”? (a) we measure it (b) we change it (c) we keep it the same
35. 35.🧺 Which of these is needed for the density tower? (a) a balloon (b) turmeric powder (c) a mirror (d) a tall clear glass
36. 36.🍯 Is very salty water denser or less dense than water? (a) denser than water (b) less dense than water
37. 37.🔍 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
38. 38.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) honey (b) yeast (c) a spoon (d) cooking oil
39. 39.⚖️ 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
40. 40.True or false: turmeric powder is not needed for the density tower. (a) False (b) True

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