Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 165 · 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.True or false: yeast is needed for the density tower. (a) False (b) True
2. 2.True or false: a tall clear glass is needed for the density tower. (a) True (b) False
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 keep it the same (b) we change it (c) we measure it
4. 4.🛟 Which rule keeps the density tower experiment safe? (a) pour it on the floor (b) taste each layer (c) throw the glass (d) do not lick the spoon
5. 5.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a mirror (b) a tall clear glass (c) a spoon (d) cooking oil
6. 6.🍯 Which of these is denser than water? (a) air (b) cooking oil (c) very salty water (d) an ice cube
7. 7.🛟 Why should we wipe up spilled oil at once? (a) oil makes it rain (b) oil turns into honey (c) spilled oil is slippery (d) oil attracts magnets
8. 8.🫗 Why does cooking oil float on top of water? (a) oil is heavier (b) oil is hot (c) oil is sticky (d) oil is less dense
9. 9.🧺 Do we need a balloon for the density tower? (a) needed (b) not needed
10. 10.⚖️ 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 change it (c) we measure it
11. 11.⚖️ 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 the layers (b) how much of each liquid (c) the order of pouring (d) the same three liquids
12. 12.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) water with food colour (b) a spoon (c) a tall clear glass (d) a magnet
13. 13.🧺 Do we need a mirror for the density tower? (a) not needed (b) 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 what we measure? (a) the same three liquids (b) the order of pouring (c) how much of each liquid (d) the order of the layers
15. 15.🧺 Do we need a battery cell for the density tower? (a) needed (b) not needed
16. 16.🔍 Which is the odd one out? (a) a ping-pong ball (b) an ice cube (c) air (d) a coin
17. 17.🧺 Do we need a magnet for the density tower? (a) needed (b) not needed
18. 18.True or false: a tall clear glass is not needed for the density tower. (a) True (b) False
19. 19.🍯 Is a ping-pong ball denser or less dense than water? (a) denser than water (b) less dense than water
20. 20.🔮 Predict: you gently drop a coin into the tower. Where does it end up? (a) on top of the oil (b) in the water layer (c) in the oil layer (d) at the very bottom
21. 21.🔍 Which is the odd one out? (a) honey (b) a pebble (c) air (d) very salty water
22. 22.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they turn to honey (b) they mix for ever (c) they become solid (d) they separate again
23. 23.🍯 Is a pebble denser or less dense than water? (a) less dense than water (b) denser than water
24. 24.True or false: a pebble is denser than water. (a) True (b) False
25. 25.🔍 Which is the odd one out? (a) honey (b) a glass marble (c) an ice cube (d) very salty water
26. 26.🍯 Which of these is less dense than water? (a) cooking oil (b) a coin (c) very salty water (d) a pebble
27. 27.🧺 Which of these is not needed for the density tower? (a) a spoon (b) water with food colour (c) cooking oil (d) turmeric powder
28. 28.True or false: a spoon is not needed for the density tower. (a) True (b) False
29. 29.⚖️ 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 kept the same. (a) True (b) False
30. 30.🍯 Which of these is denser than water? (a) cooking oil (b) a ping-pong ball (c) honey (d) an ice cube
31. 31.🍯 Which of these is less dense than water? (a) a coin (b) a pebble (c) a cork (d) very salty water
32. 32.🔍 Which is the odd one out? (a) a ping-pong ball (b) a pebble (c) an ice cube (d) air
33. 33.🔍 Which layer is on top in the honey-water-oil tower? (a) coloured water (b) the spoon (c) honey (d) cooking oil
34. 34.⚖️ 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 change it (b) we measure it (c) we keep it the same
35. 35.⚖️ 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) True (b) False
36. 36.🍯 Is air denser or less dense than water? (a) less dense than water (b) denser than water
37. 37.🍯 Why does honey sink to the bottom of the glass? (a) it is the stickiest (b) it is the coldest (c) it is yellow (d) it is the densest
38. 38.🍯 Which of these is less dense than water? (a) a pebble (b) an ice cube (c) very salty water (d) honey
39. 39.🧺 Which of these is needed for the density tower? (a) a mirror (b) a magnet (c) turmeric powder (d) a tall clear glass
40. 40.🧺 Which of these is not needed for the density tower? (a) a spoon (b) a magnet (c) water with food colour (d) honey

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