Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 212 · 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) turmeric powder (c) a tall clear glass (d) a spoon
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.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? Which of these is kept the same? (a) the order of pouring (b) the order of the layers (c) how much of each liquid
4. 4.⚖️ 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 kept the same. (a) True (b) False
5. 5.True or false: honey is needed for the density tower. (a) True (b) False
6. 6.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) honey (b) water with food colour (c) a spoon (d) a magnet
7. 7.🍯 Why does honey sink to the bottom of the glass? (a) it is yellow (b) it is the stickiest (c) it is the coldest (d) it is the densest
8. 8.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a mirror (b) honey (c) cooking oil (d) a tall clear glass
9. 9.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they mix for ever (b) they turn to honey (c) they become solid (d) they separate again
10. 10.🔍 Which is the odd one out? (a) a glass marble (b) a ping-pong ball (c) cooking oil (d) an ice cube
11. 11.🧺 Do we need water with food colour for the density tower? (a) not needed (b) needed
12. 12.🔮 Predict: you gently drop a coin into the tower. Where does it end up? (a) in the water layer (b) on top of the oil (c) at the very bottom (d) in the oil layer
13. 13.🧺 Do we need yeast for the density tower? (a) needed (b) not needed
14. 14.🔍 Which is the odd one out? (a) a glass marble (b) a coin (c) a cork (d) a pebble
15. 15.True or false: water with food colour is needed for the density tower. (a) False (b) True
16. 16.🍯 Which of these is denser than water? (a) an ice cube (b) a coin (c) cooking oil (d) a cork
17. 17.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? True or false: how much of each liquid is kept the same. (a) True (b) False
18. 18.True or false: cooking oil is denser than water. (a) True (b) False
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 change it (b) we keep it the same (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 kept the same. (a) False (b) True
21. 21.True or false: a balloon is not needed for the density tower. (a) False (b) True
22. 22.🛟 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
23. 23.True or false: a coin is less dense than water. (a) True (b) False
24. 24.🧺 Which of these is needed for the density tower? (a) a battery cell (b) honey (c) a magnet (d) a mirror
25. 25.🔍 Which is the odd one out? (a) a cork (b) an ice cube (c) cooking oil (d) honey
26. 26.🛟 Which rule keeps the density tower experiment safe? (a) do not lick the spoon (b) pour it on the floor (c) throw the glass (d) taste each layer
27. 27.🔍 Which is the odd one out? (a) a glass marble (b) air (c) very salty water (d) honey
28. 28.🧺 Do we need a balloon for the density tower? (a) needed (b) not needed
29. 29.🍯 Is a cork denser or less dense than water? (a) less dense than water (b) denser than water
30. 30.⚖️ 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 keep it the same (c) we measure it
31. 31.⚖️ 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) how much of each liquid (c) the same glass (d) the same three liquids
32. 32.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) in the water layer (b) in the honey layer (c) under the honey (d) on top of the oil
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 order of the layers is kept the same. (a) True (b) False
34. 34.🔍 Which layer is on top in the honey-water-oil tower? (a) coloured water (b) cooking oil (c) honey (d) the spoon
35. 35.🧺 Do we need a magnet for the density tower? (a) needed (b) not needed
36. 36.🧺 Which of these is not needed for the density tower? (a) a spoon (b) a tall clear glass (c) water with food colour (d) a balloon
37. 37.🍯 Which of these is denser than water? (a) a cork (b) very salty water (c) air (d) a ping-pong ball
38. 38.🔍 Which is the odd one out? (a) an ice cube (b) a ping-pong ball (c) a cork (d) very salty water
39. 39.True or false: a mirror is needed for the density tower. (a) False (b) True
40. 40.🍯 Is very salty water denser or less dense than water? (a) denser than water (b) less dense than water

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