Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 47 · 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 kept the same? (a) the order of pouring (b) how much of each liquid (c) the order of the layers
2. 2.📘 What does “dense” mean? (a) very thin (b) very hot (c) heavy for its size (d) very colourful
3. 3.🫗 Why does cooking oil float on top of water? (a) oil is sticky (b) oil is hot (c) oil is less dense (d) oil is heavier
4. 4.True or false: a tall clear glass is not needed for the density tower. (a) False (b) True
5. 5.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a mirror (b) water with food colour (c) a tall clear glass (d) honey
6. 6.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they separate again (b) they mix for ever (c) they turn to honey (d) they become solid
7. 7.🧺 Which of these is not needed for the density tower? (a) a tall clear glass (b) turmeric powder (c) a spoon (d) water with food colour
8. 8.🍯 Which of these is denser than water? (a) honey (b) an ice cube (c) cooking oil (d) air
9. 9.⚖️ 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
10. 10.🔍 What do you see after pouring honey, water and oil into one glass? (a) one mixed colour (b) bubbles of gas (c) the glass gets hot (d) three separate layers
11. 11.True or false: a cork is denser than water. (a) True (b) False
12. 12.True or false: a mirror is needed for the density tower. (a) False (b) True
13. 13.🔮 Predict: you gently drop a coin into the tower. Where does it end up? (a) in the oil layer (b) in the water layer (c) on top of the oil (d) at the very bottom
14. 14.🛟 Which rule keeps the density tower experiment safe? (a) pour it on the floor (b) do not lick the spoon (c) taste each layer (d) throw the glass
15. 15.🍯 Is very salty water denser or less dense than water? (a) denser than water (b) less dense than water
16. 16.True or false: water with food colour is not needed for the density tower. (a) True (b) False
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: the same glass is the one thing we change. (a) True (b) False
18. 18.🛟 Why should we wipe up spilled oil at once? (a) oil attracts magnets (b) oil turns into honey (c) spilled oil is slippery (d) oil makes it rain
19. 19.⚖️ 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 the one thing we change. (a) True (b) False
20. 20.🧺 Do we need yeast for the density tower? (a) not needed (b) needed
21. 21.True or false: a glass marble is less dense than water. (a) False (b) True
22. 22.🔍 Which is the odd one out? (a) a pebble (b) very salty water (c) cooking oil (d) a coin
23. 23.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a spoon (b) a battery cell (c) cooking oil (d) honey
24. 24.🍯 Which of these is less dense than water? (a) a pebble (b) a coin (c) a cork (d) honey
25. 25.🍯 Is a coin denser or less dense than water? (a) less dense than water (b) denser than water
26. 26.🧺 Which of these is needed for the density tower? (a) a balloon (b) honey (c) yeast (d) a battery cell
27. 27.⚖️ 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 measure it (b) we change it (c) we keep it the same
28. 28.True or false: a magnet is needed for the density tower. (a) False (b) True
29. 29.🍯 Is a pebble denser or less dense than water? (a) less dense than water (b) denser than water
30. 30.🔍 Which is the odd one out? (a) honey (b) very salty water (c) a coin (d) an ice cube
31. 31.🧺 Do we need water with food colour for the density tower? (a) not needed (b) needed
32. 32.True or false: a tall clear glass is needed for the density tower. (a) True (b) False
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 “the order of pouring”? (a) we change it (b) we measure it (c) we keep it the same
34. 34.True or false: a ping-pong ball 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? Which of these is what we measure? (a) the order of pouring (b) the order of the layers (c) the same three liquids (d) how much of each liquid
36. 36.True or false: a coin is denser than water. (a) False (b) True
37. 37.True or false: turmeric powder is not needed for the density tower. (a) True (b) False
38. 38.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a spoon (b) a magnet (c) a tall clear glass (d) honey
39. 39.🔍 Which layer is on top in the honey-water-oil tower? (a) honey (b) coloured water (c) the spoon (d) cooking oil
40. 40.⚖️ 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 what we measure. (a) False (b) True

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