Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 211 · 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.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) honey (b) a magnet (c) water with food colour (d) a tall clear glass
2. 2.🫗 Why does cooking oil float on top of water? (a) oil is hot (b) oil is heavier (c) oil is sticky (d) oil is less dense
3. 3.🧺 Which of these is needed for the density tower? (a) yeast (b) a magnet (c) a balloon (d) water with food colour
4. 4.True or false: cooking oil is denser than water. (a) False (b) True
5. 5.⚖️ 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 the one thing we change. (a) False (b) True
6. 6.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) honey (b) a mirror (c) a tall clear glass (d) water with food colour
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 of these is denser than water? (a) a cork (b) a pebble (c) an ice cube (d) cooking oil
9. 9.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a spoon (b) a balloon (c) cooking oil (d) water with food colour
10. 10.🍯 Is a ping-pong ball denser or less dense than water? (a) less dense than water (b) denser than water
11. 11.🔍 Which layer is on top in the honey-water-oil tower? (a) honey (b) the spoon (c) coloured water (d) cooking oil
12. 12.⚖️ 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 three liquids is kept the same. (a) False (b) True
13. 13.🧺 Do we need a battery cell for the density tower? (a) needed (b) not needed
14. 14.⚖️ 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 three liquids (b) the same glass (c) how much of each liquid (d) the order of pouring
15. 15.🍯 Is air denser or less dense than water? (a) less dense than water (b) denser 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 same three liquids”? (a) we keep it the same (b) we measure it (c) we change it
17. 17.🍯 Which of these is less dense than water? (a) honey (b) a pebble (c) an ice cube (d) very salty water
18. 18.🍯 Which of these is less dense than water? (a) a glass marble (b) a ping-pong ball (c) a pebble (d) a coin
19. 19.🔍 Which is the odd one out? (a) very salty water (b) honey (c) an ice cube (d) a pebble
20. 20.🔍 Which is the odd one out? (a) a glass marble (b) air (c) a pebble (d) a coin
21. 21.📘 What does “dense” mean? (a) very colourful (b) very hot (c) very thin (d) heavy for its size
22. 22.🍯 Which of these is denser than water? (a) cooking oil (b) air (c) a cork (d) very salty water
23. 23.🔍 Which is the odd one out? (a) air (b) a ping-pong ball (c) honey (d) cooking oil
24. 24.🔍 What do you see after pouring honey, water and oil into one glass? (a) the glass gets hot (b) bubbles of gas (c) one mixed colour (d) three separate layers
25. 25.True or false: cooking oil is needed for the density tower. (a) False (b) True
26. 26.🛟 Which rule keeps the density tower experiment safe? (a) taste each layer (b) pour it on the floor (c) do not lick the spoon (d) throw the glass
27. 27.🧺 Which of these is not needed for the density tower? (a) a spoon (b) turmeric powder (c) a tall clear glass (d) cooking oil
28. 28.True or false: very salty water is less dense than water. (a) False (b) True
29. 29.🧺 Which of these is not needed for the density tower? (a) a spoon (b) cooking oil (c) a battery cell (d) honey
30. 30.🧺 Which of these is needed for the density tower? (a) a magnet (b) a tall clear glass (c) turmeric powder (d) yeast
31. 31.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they turn to honey (b) they separate again (c) they become solid (d) they mix for ever
32. 32.True or false: honey is needed for the density tower. (a) True (b) False
33. 33.🔮 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
34. 34.🧺 Do we need yeast for the density tower? (a) needed (b) not needed
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.⚖️ 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
37. 37.🔍 Which is the odd one out? (a) a glass marble (b) cooking oil (c) a pebble (d) a coin
38. 38.🧺 Which of these is needed for the density tower? (a) a magnet (b) a mirror (c) turmeric powder (d) a spoon
39. 39.⚖️ 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
40. 40.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a tall clear glass (b) yeast (c) a spoon (d) honey

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