Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 413 · 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.🍯 Is very salty water denser or less dense than water? (a) less dense than water (b) denser than water
2. 2.🍯 Which of these is denser than water? (a) cooking oil (b) honey (c) an ice cube (d) a ping-pong ball
3. 3.🧺 Which of these is needed for the density tower? (a) a magnet (b) a mirror (c) water with food colour (d) a battery cell
4. 4.🔍 Which is the odd one out? (a) a coin (b) honey (c) very salty water (d) cooking oil
5. 5.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) honey (b) a tall clear glass (c) yeast (d) cooking oil
6. 6.🫗 Why does cooking oil float on top of water? (a) oil is hot (b) oil is sticky (c) oil is heavier (d) oil is less dense
7. 7.🧺 Which of these is needed for the density tower? (a) turmeric powder (b) honey (c) a battery cell (d) yeast
8. 8.🍯 Is a coin denser or less dense than water? (a) denser than water (b) less dense than water
9. 9.🧺 Do we need a balloon for the density tower? (a) not needed (b) needed
10. 10.True or false: very salty water is less dense than water. (a) True (b) False
11. 11.🧺 Do we need a spoon for the density tower? (a) needed (b) not needed
12. 12.⚖️ 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 three liquids is kept the same. (a) False (b) True
13. 13.True or false: a balloon is not needed for the density tower. (a) False (b) True
14. 14.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a spoon (b) a mirror (c) cooking oil (d) honey
15. 15.True or false: turmeric powder is needed for the density tower. (a) True (b) False
16. 16.🛟 Which rule keeps the density tower experiment safe? (a) taste each layer (b) do not lick the spoon (c) pour it on the floor (d) throw the glass
17. 17.🔮 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
18. 18.⚖️ 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 keep it the same (b) we measure it (c) we change it
19. 19.🍯 Which of these is less dense than water? (a) very salty water (b) a coin (c) a pebble (d) an ice cube
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 glass”? (a) we measure it (b) we change it (c) we keep it the same
21. 21.🔍 Which is the odd one out? (a) cooking oil (b) honey (c) air (d) an ice cube
22. 22.⚖️ 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 same glass (b) the order of pouring (c) the order of the layers
23. 23.🛟 Why should we wipe up spilled oil at once? (a) oil turns into honey (b) oil makes it rain (c) spilled oil is slippery (d) oil attracts magnets
24. 24.📘 What does “dense” mean? (a) heavy for its size (b) very thin (c) very colourful (d) very hot
25. 25.🧺 Which of these is needed for the density tower? (a) a mirror (b) a battery cell (c) a spoon (d) a magnet
26. 26.🍯 Which of these is denser than water? (a) air (b) a pebble (c) cooking oil (d) an ice cube
27. 27.🍯 Is a cork denser or less dense than water? (a) less dense than water (b) denser than water
28. 28.🔮 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 turn to honey (d) they separate again
29. 29.True or false: yeast is needed for the density tower. (a) False (b) True
30. 30.🔍 Which is the odd one out? (a) an ice cube (b) a coin (c) a ping-pong ball (d) air
31. 31.True or false: honey is needed for the density tower. (a) False (b) True
32. 32.🔍 What do you see after pouring honey, water and oil into one glass? (a) bubbles of gas (b) one mixed colour (c) three separate layers (d) the glass gets hot
33. 33.⚖️ 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
34. 34.🔍 Which is the odd one out? (a) a glass marble (b) very salty water (c) a ping-pong ball (d) a coin
35. 35.True or false: a spoon is needed for the density tower. (a) False (b) True
36. 36.True or false: honey is denser than water. (a) True (b) False
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 kept the same? (a) the order of the layers (b) the order of pouring (c) the same three liquids
38. 38.🧺 Which of these is not needed for the density tower? (a) water with food colour (b) honey (c) a balloon (d) a tall clear glass
39. 39.True or false: a ping-pong ball is denser than water. (a) False (b) True
40. 40.⚖️ 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 same three liquids (d) the order of pouring

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