Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 327 · 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 magnet (b) yeast (c) water with food colour (d) a battery cell
2. 2.🍯 Why does honey sink to the bottom of the glass? (a) it is the stickiest (b) it is the coldest (c) it is the densest (d) it is yellow
3. 3.📘 What does “dense” mean? (a) very hot (b) very thin (c) heavy for its size (d) very colourful
4. 4.🍯 Is honey denser or less dense than water? (a) less dense than water (b) denser than water
5. 5.⚖️ 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
6. 6.🧺 Do we need a tall clear glass for the density tower? (a) not needed (b) needed
7. 7.🛟 Why should we wipe up spilled oil at once? (a) oil attracts magnets (b) oil makes it rain (c) spilled oil is slippery (d) oil turns into honey
8. 8.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a tall clear glass (b) cooking oil (c) water with food colour (d) turmeric powder
9. 9.🧺 Do we need a balloon for the density tower? (a) needed (b) not needed
10. 10.🔮 Predict: you gently drop a coin into the tower. Where does it end up? (a) on top of the oil (b) at the very bottom (c) in the oil layer (d) in the water layer
11. 11.🫗 Why does cooking oil float on top of water? (a) oil is sticky (b) oil is hot (c) oil is less dense (d) oil is heavier
12. 12.🧺 Which of these is needed for the density tower? (a) a spoon (b) a battery cell (c) yeast (d) a magnet
13. 13.🍯 Is very salty water denser or less dense than water? (a) less dense than water (b) denser than water
14. 14.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a mirror (b) cooking oil (c) water with food colour (d) honey
15. 15.🍯 Is an ice cube denser or less dense than water? (a) denser than water (b) less dense than water
16. 16.⚖️ 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 measure it (b) we keep it the same (c) we change it
17. 17.⚖️ 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
18. 18.🍯 Which of these is denser than water? (a) a pebble (b) air (c) a cork (d) a ping-pong ball
19. 19.🍯 Which of these is less dense than water? (a) very salty water (b) honey (c) cooking oil (d) a pebble
20. 20.True or false: air is less dense than water. (a) True (b) False
21. 21.🧺 Do we need water with food colour for the density tower? (a) needed (b) not needed
22. 22.True or false: a pebble is denser than water. (a) False (b) True
23. 23.⚖️ 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 keep it the same (b) we measure it (c) we change it
24. 24.🔍 Which is the odd one out? (a) honey (b) a coin (c) a pebble (d) air
25. 25.🧺 Which of these is not needed for the density tower? (a) water with food colour (b) cooking oil (c) yeast (d) a tall clear glass
26. 26.⚖️ 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
27. 27.🧺 Which of these is needed for the density tower? (a) a tall clear glass (b) a magnet (c) turmeric powder (d) a mirror
28. 28.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) under the honey (b) on top of the oil (c) in the honey layer (d) in the water layer
29. 29.🍯 Which of these is denser than water? (a) air (b) an ice cube (c) very salty water (d) cooking oil
30. 30.🔍 Which is the odd one out? (a) a ping-pong ball (b) a pebble (c) cooking oil (d) an ice cube
31. 31.🔍 Which layer is on top in the honey-water-oil tower? (a) the spoon (b) coloured water (c) cooking oil (d) honey
32. 32.True or false: cooking oil is needed for the density tower. (a) True (b) False
33. 33.True or false: a spoon is needed for the density tower. (a) False (b) True
34. 34.True or false: a balloon is needed for the density tower. (a) False (b) True
35. 35.True or false: a mirror is not needed for the density tower. (a) True (b) False
36. 36.⚖️ 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 measure it (c) we change it
37. 37.🧺 Which of these is needed for the density tower? (a) a balloon (b) yeast (c) a mirror (d) honey
38. 38.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they mix for ever (b) they turn to honey (c) they separate again (d) they become solid
39. 39.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a tall clear glass (b) a spoon (c) cooking oil (d) a magnet
40. 40.🧺 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

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