Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 234 · 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.⚖️ 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 order of the layers (c) the same glass (d) the order of pouring
2. 2.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they become solid (b) they mix for ever (c) they separate again (d) they turn to honey
3. 3.⚖️ 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 change it (b) we keep it the same (c) we measure it
4. 4.⚖️ 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 measure it (b) we keep it the same (c) we change it
5. 5.True or false: air is denser than water. (a) False (b) True
6. 6.🔍 What do you see after pouring honey, water and oil into one glass? (a) three separate layers (b) one mixed colour (c) bubbles of gas (d) the glass gets hot
7. 7.🧺 Do we need honey for the density tower? (a) not needed (b) needed
8. 8.⚖️ 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) the same three liquids (d) how much of each liquid
9. 9.🧺 Do we need a magnet for the density tower? (a) not needed (b) needed
10. 10.True or false: honey is needed for the density tower. (a) True (b) False
11. 11.True or false: a tall clear glass is needed for the density tower. (a) True (b) False
12. 12.🧺 Which of these is needed for the density tower? (a) cooking oil (b) a mirror (c) turmeric powder (d) a magnet
13. 13.🫗 Why does cooking oil float on top of water? (a) oil is sticky (b) oil is hot (c) oil is heavier (d) oil is less dense
14. 14.🔍 Which layer is on top in the honey-water-oil tower? (a) coloured water (b) cooking oil (c) the spoon (d) honey
15. 15.🛟 Which rule keeps the density tower experiment safe? (a) pour it on the floor (b) do not lick the spoon (c) taste each layer (d) throw the glass
16. 16.🍯 Is a ping-pong ball denser or less dense than water? (a) less dense than water (b) denser than water
17. 17.🍯 Which of these is less dense than water? (a) air (b) honey (c) very salty water (d) a pebble
18. 18.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) on top of the oil (b) in the water layer (c) in the honey layer (d) under the honey
19. 19.⚖️ 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) True (b) False
20. 20.⚖️ 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 measure it (c) we keep it the same
21. 21.⚖️ 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 change it (c) we keep it the same
22. 22.🍯 Is a pebble denser or less dense than water? (a) denser than water (b) less dense than water
23. 23.🔍 Which is the odd one out? (a) a glass marble (b) very salty water (c) an ice cube (d) a coin
24. 24.🍯 Which of these is denser than water? (a) a ping-pong ball (b) air (c) a cork (d) a coin
25. 25.⚖️ 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 what we measure. (a) False (b) True
26. 26.🍯 Which of these is denser than water? (a) an ice cube (b) a ping-pong ball (c) cooking oil (d) honey
27. 27.True or false: a battery cell is needed for the density tower. (a) False (b) True
28. 28.⚖️ 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) True (b) False
29. 29.True or false: cooking oil is less dense than water. (a) False (b) True
30. 30.🔍 Which is the odd one out? (a) a glass marble (b) an ice cube (c) a cork (d) a ping-pong ball
31. 31.True or false: air is less dense than water. (a) False (b) True
32. 32.🍯 Is a coin denser or less dense than water? (a) less dense than water (b) denser than water
33. 33.⚖️ 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
34. 34.True or false: a mirror is needed for the density tower. (a) True (b) False
35. 35.🍯 Why does honey sink to the bottom of the glass? (a) it is the densest (b) it is yellow (c) it is the stickiest (d) it is the coldest
36. 36.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a tall clear glass (b) cooking oil (c) a balloon (d) honey
37. 37.True or false: a cork is denser than water. (a) False (b) True
38. 38.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) turmeric powder (b) cooking oil (c) a tall clear glass (d) honey
39. 39.🧺 Which of these is not needed for the density tower? (a) a magnet (b) water with food colour (c) honey (d) a tall clear glass
40. 40.🧺 Which of these is not needed for the density tower? (a) turmeric powder (b) a tall clear glass (c) water with food colour (d) honey

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