Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 656 · 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 rule keeps the density tower experiment safe? (a) throw the glass (b) pour it on the floor (c) do not lick the spoon (d) taste each layer
2. 2.🍯 Which of these is denser than water? (a) a cork (b) a ping-pong ball (c) cooking oil (d) a pebble
3. 3.🔍 Which is the odd one out? (a) a coin (b) a ping-pong ball (c) a cork (d) cooking oil
4. 4.True or false: a battery cell is not needed for the density tower. (a) True (b) False
5. 5.True or false: a cork is denser than water. (a) False (b) True
6. 6.🔍 Which is the odd one out? (a) a cork (b) a ping-pong ball (c) air (d) a pebble
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: how much of each liquid is kept the same. (a) False (b) True
8. 8.⚖️ 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
9. 9.🧺 Which of these is needed for the density tower? (a) cooking oil (b) a magnet (c) a mirror (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? What do we do with “the order of the layers”? (a) we measure it (b) we change it (c) we keep it the same
11. 11.🍯 Which of these is less dense than water? (a) honey (b) a pebble (c) very salty water (d) a ping-pong ball
12. 12.🍯 Which of these is less dense than water? (a) honey (b) a glass marble (c) a pebble (d) air
13. 13.True or false: air is denser than water. (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? What do we do with “the same three liquids”? (a) we keep it the same (b) we measure it (c) we change it
15. 15.🍯 Which of these is less dense than water? (a) honey (b) a pebble (c) very salty water (d) a cork
16. 16.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) on top of the oil (b) in the honey layer (c) under the honey (d) in the water layer
17. 17.🔍 Which layer is on top in the honey-water-oil tower? (a) coloured water (b) cooking oil (c) honey (d) the spoon
18. 18.⚖️ 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) the order of the layers (d) the order of pouring
19. 19.🧺 Do we need water with food colour for the density tower? (a) not needed (b) needed
20. 20.True or false: an ice cube is denser than water. (a) True (b) False
21. 21.🔮 Predict: you gently drop a coin into the tower. Where does it end up? (a) on top of the oil (b) in the oil layer (c) at the very bottom (d) in the water layer
22. 22.🛟 Why should we wipe up spilled oil at once? (a) oil turns into honey (b) oil makes it rain (c) spilled oil is slippery (d) oil attracts magnets
23. 23.🔍 What do you see after pouring honey, water and oil into one glass? (a) bubbles of gas (b) one mixed colour (c) the glass gets hot (d) three separate layers
24. 24.🫗 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
25. 25.🍯 Which of these is denser than water? (a) an ice cube (b) a cork (c) cooking oil (d) a coin
26. 26.🍯 Is honey denser or less dense than water? (a) denser than water (b) less dense than water
27. 27.True or false: honey is not needed for the density tower. (a) False (b) True
28. 28.🍯 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
29. 29.🧺 Do we need a balloon for the density tower? (a) not needed (b) needed
30. 30.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they separate again (b) they become solid (c) they mix for ever (d) they turn to honey
31. 31.🧺 Which of these is needed for the density tower? (a) a mirror (b) a battery cell (c) yeast (d) water with food colour
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: how much of each liquid is what we measure. (a) False (b) True
33. 33.🧺 Which of these is not needed for the density tower? (a) a spoon (b) a balloon (c) a tall clear glass (d) cooking oil
34. 34.⚖️ 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 the one thing we change. (a) True (b) False
35. 35.🍯 Is cooking oil denser or less dense than water? (a) denser than water (b) less dense than water
36. 36.🧺 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) yeast
37. 37.🔍 Which is the odd one out? (a) cooking oil (b) a cork (c) an ice cube (d) very salty water
38. 38.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a spoon (b) turmeric powder (c) a tall clear glass (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 “how much of each liquid”? (a) we measure it (b) we change it (c) we keep it the same
40. 40.True or false: a tall clear glass is needed for the density tower. (a) True (b) False

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