Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 353 · 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.🧺 Which of these is needed for the density tower? (a) a magnet (b) yeast (c) honey (d) a battery cell
2. 2.True or false: a cork is denser than water. (a) False (b) True
3. 3.True or false: a tall clear glass is not needed for the density tower. (a) False (b) True
4. 4.📘 What does “dense” mean? (a) very hot (b) very colourful (c) very thin (d) heavy for its size
5. 5.True or false: very salty water is less dense than water. (a) False (b) True
6. 6.🍯 Which of these is denser than water? (a) cooking oil (b) a ping-pong ball (c) a pebble (d) a cork
7. 7.⚖️ 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
8. 8.True or false: honey is not needed for the density tower. (a) False (b) True
9. 9.🧺 Do we need a spoon 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? Which of these is kept the same? (a) the order of the layers (b) the order of pouring (c) the same three liquids
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 pouring (b) the same glass (c) the order of the layers (d) the same three liquids
12. 12.🛟 Which rule keeps the density tower experiment safe? (a) throw the glass (b) taste each layer (c) pour it on the floor (d) do not lick the spoon
13. 13.🔮 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) at the very bottom (d) in the water layer
14. 14.True or false: a spoon is not needed for the density tower. (a) True (b) False
15. 15.True or false: water with food colour is not needed for the density tower. (a) True (b) False
16. 16.⚖️ 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
17. 17.⚖️ 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 keep it the same (c) we change it
18. 18.🧺 Which of these is needed for the density tower? (a) a balloon (b) turmeric powder (c) yeast (d) a spoon
19. 19.🔍 Which is the odd one out? (a) very salty water (b) a glass marble (c) a pebble (d) a ping-pong ball
20. 20.🧺 Do we need honey for the density tower? (a) not needed (b) needed
21. 21.🛟 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
22. 22.🫗 Why does cooking oil float on top of water? (a) oil is hot (b) oil is less dense (c) oil is sticky (d) oil is heavier
23. 23.🔍 Which layer is on top in the honey-water-oil tower? (a) cooking oil (b) the spoon (c) coloured water (d) honey
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 same glass”? (a) we measure it (b) we change it (c) we keep it the same
25. 25.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) water with food colour (b) honey (c) cooking oil (d) a battery cell
26. 26.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a spoon (b) a mirror (c) water with food colour (d) a tall clear glass
27. 27.🍯 Is very salty water denser or less dense than water? (a) denser than water (b) less dense than water
28. 28.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they mix for ever (b) they separate again (c) they turn to honey (d) they become solid
29. 29.🍯 Is a glass marble denser or less dense than water? (a) denser than water (b) less dense than water
30. 30.True or false: a balloon is needed for the density tower. (a) True (b) False
31. 31.🧺 Do we need a balloon for the density tower? (a) not needed (b) needed
32. 32.🔍 Which is the odd one out? (a) an ice cube (b) a glass marble (c) a coin (d) a pebble
33. 33.🍯 Is a coin denser or less dense than water? (a) less dense than water (b) denser than water
34. 34.🧺 Which of these is not needed for the density tower? (a) a spoon (b) water with food colour (c) a magnet (d) honey
35. 35.True or false: cooking oil is less dense than water. (a) False (b) True
36. 36.🧺 Do we need a tall clear glass for the density tower? (a) needed (b) not needed
37. 37.⚖️ 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 the layers (c) how much of each liquid (d) the order of pouring
38. 38.True or false: a battery cell is needed for the density tower. (a) True (b) False
39. 39.True or false: a cork is less dense than water. (a) True (b) False
40. 40.🧺 Do we need water with food colour for the density tower? (a) needed (b) not needed

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