Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 207 · 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.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they become solid (b) they separate again (c) they mix for ever (d) they turn to honey
2. 2.⚖️ 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 the layers (b) the order of pouring (c) how much of each liquid (d) the same three liquids
3. 3.🔍 What do you see after pouring honey, water and oil into one glass? (a) one mixed colour (b) bubbles of gas (c) three separate layers (d) the glass gets hot
4. 4.⚖️ 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 order of the layers (c) how much of each liquid (d) the order of pouring
5. 5.True or false: a ping-pong ball is denser than water. (a) False (b) True
6. 6.🔍 Which is the odd one out? (a) an ice cube (b) cooking oil (c) very salty water (d) a ping-pong ball
7. 7.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a mirror (b) a spoon (c) cooking oil (d) water with food colour
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 same three liquids”? (a) we change it (b) we keep it the same (c) we measure it
9. 9.🔍 Which is the odd one out? (a) a pebble (b) an ice cube (c) a ping-pong ball (d) a cork
10. 10.True or false: a glass marble is less dense than water. (a) False (b) True
11. 11.🛟 Why should we wipe up spilled oil at once? (a) oil attracts magnets (b) oil turns into honey (c) oil makes it rain (d) spilled oil is slippery
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 order of pouring is the one thing we change. (a) False (b) True
13. 13.True or false: honey 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 “how much of each liquid”? (a) we measure it (b) we keep it the same (c) we change it
15. 15.🍯 Which of these is denser than water? (a) very salty water (b) cooking oil (c) air (d) an ice cube
16. 16.🧺 Do we need water with food colour for the density tower? (a) not needed (b) needed
17. 17.True or false: honey is not needed for the density tower. (a) True (b) False
18. 18.🍯 Is honey denser or less dense than water? (a) denser than water (b) less dense than water
19. 19.🫗 Why does cooking oil float on top of water? (a) oil is less dense (b) oil is hot (c) oil is heavier (d) oil is sticky
20. 20.🔮 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
21. 21.True or false: a coin is less dense than water. (a) False (b) True
22. 22.🔍 Which is the odd one out? (a) an ice cube (b) a coin (c) a cork (d) a ping-pong ball
23. 23.⚖️ 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) True (b) False
24. 24.🍯 Why does honey sink to the bottom of the glass? (a) it is the stickiest (b) it is yellow (c) it is the densest (d) it is the coldest
25. 25.🧺 Which of these is not needed for the density tower? (a) a tall clear glass (b) cooking oil (c) a balloon (d) a spoon
26. 26.True or false: very salty water is denser than water. (a) False (b) True
27. 27.🧺 Do we need a battery cell for the density tower? (a) not needed (b) needed
28. 28.True or false: yeast is not needed for the density tower. (a) True (b) False
29. 29.🛟 Which rule keeps the density tower experiment safe? (a) taste each layer (b) do not lick the spoon (c) pour it on the floor (d) throw the glass
30. 30.True or false: a battery cell is not needed for the density tower. (a) True (b) False
31. 31.🧺 Which of these is needed for the density tower? (a) cooking oil (b) turmeric powder (c) yeast (d) a balloon
32. 32.True or false: cooking oil is needed for the density tower. (a) True (b) False
33. 33.🔍 Which layer is on top in the honey-water-oil tower? (a) cooking oil (b) coloured water (c) the spoon (d) honey
34. 34.🔍 Which is the odd one out? (a) a glass marble (b) an ice cube (c) honey (d) a coin
35. 35.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a battery cell (b) a spoon (c) a tall clear glass (d) water with food colour
36. 36.🧺 Do we need a balloon for the density tower? (a) needed (b) not needed
37. 37.True or false: a battery cell is needed for the density tower. (a) False (b) True
38. 38.⚖️ 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 change it (b) we keep it the same (c) we measure it
39. 39.🔍 Which is the odd one out? (a) a ping-pong ball (b) a cork (c) a glass marble (d) cooking oil
40. 40.True or false: a magnet is not needed for the density tower. (a) True (b) False

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