Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 621 · 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) how much of each liquid (b) the order of pouring (c) the order of the layers (d) the same glass
2. 2.🔍 Which layer is on top in the honey-water-oil tower? (a) coloured water (b) cooking oil (c) the spoon (d) 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 “the order of pouring”? (a) we change it (b) we measure it (c) we keep it the same
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 kept the same? (a) the order of pouring (b) the order of the layers (c) the same three liquids
5. 5.🔮 Predict: you gently drop a coin into the tower. Where does it end up? (a) in the oil layer (b) on top of the oil (c) in the water layer (d) at the very bottom
6. 6.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) cooking oil (b) honey (c) a magnet (d) a spoon
7. 7.🧺 Which of these is not needed for the density tower? (a) a tall clear glass (b) water with food colour (c) a spoon (d) turmeric powder
8. 8.🍯 Which of these is denser than water? (a) honey (b) air (c) a ping-pong ball (d) an ice cube
9. 9.True or false: very salty water is less dense than water. (a) True (b) False
10. 10.🧺 Do we need honey for the density tower? (a) needed (b) not needed
11. 11.🫗 Why does cooking oil float on top of water? (a) oil is sticky (b) oil is heavier (c) oil is hot (d) oil is less dense
12. 12.🧺 Do we need a balloon for the density tower? (a) needed (b) not needed
13. 13.🛟 Why should we wipe up spilled oil at once? (a) spilled oil is slippery (b) oil attracts magnets (c) oil makes it rain (d) oil turns into honey
14. 14.⚖️ 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
15. 15.🔍 Which is the odd one out? (a) a coin (b) a ping-pong ball (c) air (d) an ice cube
16. 16.⚖️ 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 the one thing we change. (a) True (b) False
17. 17.True or false: yeast is not needed for the density tower. (a) True (b) False
18. 18.🛟 Which rule keeps the density tower experiment safe? (a) pour it on the floor (b) throw the glass (c) do not lick the spoon (d) taste each layer
19. 19.🧺 Do we need yeast for the density tower? (a) needed (b) not needed
20. 20.True or false: a balloon is not needed for the density tower. (a) True (b) False
21. 21.🧺 Do we need water with food colour for the density tower? (a) needed (b) not needed
22. 22.🔍 Which is the odd one out? (a) honey (b) a coin (c) air (d) very salty water
23. 23.True or false: a tall clear glass is not needed for the density tower. (a) False (b) True
24. 24.⚖️ 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 measure it (b) we change it (c) we keep it the same
25. 25.🔮 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
26. 26.True or false: a cork is less dense than water. (a) True (b) False
27. 27.⚖️ 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) False (b) True
28. 28.🍯 Why does honey sink to the bottom of the glass? (a) it is yellow (b) it is the densest (c) it is the coldest (d) it is the stickiest
29. 29.🧺 Do we need a spoon for the density tower? (a) needed (b) not needed
30. 30.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) water with food colour (b) a mirror (c) honey (d) a tall clear glass
31. 31.🔍 Which is the odd one out? (a) a glass marble (b) a pebble (c) honey (d) a ping-pong ball
32. 32.🔍 Which is the odd one out? (a) a ping-pong ball (b) a glass marble (c) cooking oil (d) a cork
33. 33.🍯 Is air denser or less dense than water? (a) less dense than water (b) denser than water
34. 34.True or false: a coin is denser than water. (a) True (b) False
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 the layers is what we measure. (a) False (b) True
36. 36.⚖️ 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 the layers (b) the order of pouring (c) how much of each liquid
37. 37.⚖️ 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) False (b) True
38. 38.🍯 Which of these is denser than water? (a) cooking oil (b) very salty water (c) air (d) an ice cube
39. 39.True or false: water with food colour is not needed for the density tower. (a) True (b) False
40. 40.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) under the honey (b) in the water layer (c) on top of the oil (d) in the honey layer

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