Density Tower Experiment Worksheet

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

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