Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 706 · 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? True or false: how much of each liquid is what we measure. (a) True (b) False
2. 2.🧺 Do we need a balloon for the density tower? (a) needed (b) not needed
3. 3.🍯 Which of these is less dense than water? (a) an ice cube (b) a coin (c) a pebble (d) very salty water
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 order of pouring is what we measure. (a) True (b) False
5. 5.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) under the honey (b) in the water layer (c) in the honey layer (d) on top of the oil
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 what we measure? (a) the order of pouring (b) the order of the layers (c) the same three liquids (d) the same glass
7. 7.⚖️ 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
8. 8.🔍 Which is the odd one out? (a) a cork (b) an ice cube (c) cooking oil (d) a glass marble
9. 9.⚖️ 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 keep it the same (b) we change it (c) we measure it
10. 10.🔍 What do you see after pouring honey, water and oil into one glass? (a) three separate layers (b) the glass gets hot (c) bubbles of gas (d) one mixed colour
11. 11.🧺 Do we need water with food colour for the density tower? (a) needed (b) not needed
12. 12.⚖️ 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 change it (c) we keep it the same
13. 13.🧺 Which of these is needed for the density tower? (a) a magnet (b) cooking oil (c) turmeric powder (d) a mirror
14. 14.🔍 Which is the odd one out? (a) air (b) a ping-pong ball (c) a cork (d) honey
15. 15.🍯 Why does honey sink to the bottom of the glass? (a) it is the coldest (b) it is the stickiest (c) it is yellow (d) it is the densest
16. 16.🔍 Which is the odd one out? (a) a pebble (b) honey (c) a cork (d) a coin
17. 17.🍯 Which of these is denser than water? (a) air (b) a ping-pong ball (c) a cork (d) a pebble
18. 18.🧺 Which of these is not needed for the density tower? (a) a spoon (b) a balloon (c) honey (d) water with food colour
19. 19.🛟 Which rule keeps the density tower experiment safe? (a) do not lick the spoon (b) throw the glass (c) pour it on the floor (d) taste each layer
20. 20.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a tall clear glass (b) water with food colour (c) turmeric powder (d) cooking oil
21. 21.🔍 Which is the odd one out? (a) a cork (b) air (c) a pebble (d) a ping-pong ball
22. 22.🛟 Why should we wipe up spilled oil at once? (a) spilled oil is slippery (b) oil turns into honey (c) oil attracts magnets (d) oil makes it rain
23. 23.🍯 Which of these is less dense than water? (a) a pebble (b) very salty water (c) cooking oil (d) honey
24. 24.True or false: a coin is denser than water. (a) True (b) False
25. 25.True or false: a battery cell is not needed for the density tower. (a) False (b) True
26. 26.🫗 Why does cooking oil float on top of water? (a) oil is hot (b) oil is less dense (c) oil is heavier (d) oil is sticky
27. 27.🍯 Is a pebble denser or less dense than water? (a) denser than water (b) less dense than water
28. 28.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) honey (b) water with food colour (c) cooking oil (d) a magnet
29. 29.🍯 Which of these is denser than water? (a) a cork (b) air (c) very salty water (d) cooking oil
30. 30.🍯 Is cooking oil denser or less dense than water? (a) denser than water (b) less dense than water
31. 31.True or false: cooking oil is not needed for the density tower. (a) True (b) False
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 same glass is what we measure. (a) False (b) True
33. 33.🧺 Do we need a battery cell for the density tower? (a) needed (b) not needed
34. 34.🍯 Is honey denser or less dense than water? (a) denser than water (b) less dense than water
35. 35.⚖️ 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
36. 36.🔍 Which layer is on top in the honey-water-oil tower? (a) cooking oil (b) the spoon (c) coloured water (d) honey
37. 37.True or false: a magnet is needed for the density tower. (a) True (b) False
38. 38.🔮 Predict: you gently drop a coin into the tower. Where does it end up? (a) at the very bottom (b) on top of the oil (c) in the water layer (d) in the oil layer
39. 39.🔍 Which is the odd one out? (a) very salty water (b) cooking oil (c) an ice cube (d) a ping-pong ball
40. 40.🧺 Do we need a mirror for the density tower? (a) not needed (b) needed

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