Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 700 · 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) water with food colour (b) a spoon (c) honey (d) yeast
2. 2.🧺 Which of these is not needed for the density tower? (a) a tall clear glass (b) cooking oil (c) a balloon (d) honey
3. 3.🔍 Which is the odd one out? (a) a glass marble (b) a pebble (c) a coin (d) a cork
4. 4.🍯 Which of these is denser than water? (a) a coin (b) air (c) an ice cube (d) a cork
5. 5.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they separate again (b) they mix for ever (c) they become solid (d) they turn to honey
6. 6.🔍 Which is the odd one out? (a) a glass marble (b) an ice cube (c) very salty water (d) honey
7. 7.🧺 Do we need cooking oil for the density tower? (a) not needed (b) needed
8. 8.🧺 Do we need a tall clear glass for the density tower? (a) not needed (b) needed
9. 9.True or false: a mirror is needed for the density tower. (a) True (b) False
10. 10.🍯 Is honey denser or less dense than water? (a) denser than water (b) less dense than water
11. 11.True or false: a glass marble is denser than water. (a) False (b) True
12. 12.⚖️ 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) the order of pouring (c) the same glass (d) the order of the layers
13. 13.🛟 Which rule keeps the density tower experiment safe? (a) taste each layer (b) pour it on the floor (c) throw the glass (d) do not lick the spoon
14. 14.🧺 Which of these is not needed for the density tower? (a) a spoon (b) honey (c) a tall clear glass (d) a mirror
15. 15.🔍 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
16. 16.True or false: a ping-pong ball is less dense than water. (a) True (b) False
17. 17.🍯 Which of these is less dense than water? (a) a coin (b) very salty water (c) air (d) a glass marble
18. 18.🔍 Which is the odd one out? (a) air (b) very salty water (c) a ping-pong ball (d) an ice cube
19. 19.⚖️ 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 change it (c) we measure it
20. 20.⚖️ 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) False (b) True
21. 21.🫗 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
22. 22.⚖️ 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 order of pouring (b) the same glass (c) the same three liquids (d) how much of each liquid
23. 23.True or false: cooking oil is needed for the density tower. (a) True (b) False
24. 24.🧺 Which of these is needed for the density tower? (a) a magnet (b) honey (c) a mirror (d) a balloon
25. 25.🛟 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
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 order of the layers is what we measure. (a) False (b) True
27. 27.🔍 Which layer is on top in the honey-water-oil tower? (a) cooking oil (b) honey (c) the spoon (d) coloured water
28. 28.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a battery cell (b) cooking oil (c) a spoon (d) honey
29. 29.⚖️ 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 change it (c) we measure it
30. 30.🔍 Which is the odd one out? (a) air (b) a cork (c) a ping-pong ball (d) a glass marble
31. 31.🍯 Is cooking oil denser or less dense than water? (a) denser than water (b) less dense than water
32. 32.🍯 Is air denser or less dense than water? (a) denser than water (b) less dense than water
33. 33.🧺 Do we need honey for the density tower? (a) not needed (b) needed
34. 34.True or false: honey is needed for the density tower. (a) True (b) False
35. 35.🍯 Which of these is denser than water? (a) a cork (b) air (c) a ping-pong ball (d) a pebble
36. 36.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) water with food colour (b) cooking oil (c) a mirror (d) a spoon
37. 37.🍯 Which of these is less dense than water? (a) a pebble (b) a ping-pong ball (c) very salty water (d) honey
38. 38.True or false: a mirror is not needed for the density tower. (a) False (b) True
39. 39.🧺 Do we need a battery cell for the density tower? (a) needed (b) not needed
40. 40.🧺 Which of these is not needed for the density tower? (a) a spoon (b) a tall clear glass (c) cooking oil (d) a magnet

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