Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 670 · 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 tall clear glass (b) a battery cell (c) yeast (d) a mirror
2. 2.🔍 What do you see after pouring honey, water and oil into one glass? (a) one mixed colour (b) the glass gets hot (c) three separate layers (d) bubbles of gas
3. 3.True or false: a cork is less dense than water. (a) True (b) False
4. 4.True or false: a ping-pong ball is less dense than water. (a) True (b) False
5. 5.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) on top of the oil (b) in the honey layer (c) in the water layer (d) under the honey
6. 6.True or false: a spoon is needed for the density tower. (a) False (b) True
7. 7.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they turn to honey (b) they become solid (c) they mix for ever (d) they separate again
8. 8.🍯 Is honey denser or less dense than water? (a) less dense than water (b) denser than water
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 “how much of each liquid”? (a) we measure it (b) we keep it the same (c) we change it
10. 10.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) honey (b) a magnet (c) a tall clear glass (d) cooking oil
11. 11.🔍 Which is the odd one out? (a) a pebble (b) an ice cube (c) cooking oil (d) a cork
12. 12.🧺 Do we need cooking oil for the density tower? (a) needed (b) not needed
13. 13.⚖️ 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) True (b) False
14. 14.⚖️ 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 glass (b) how much of each liquid (c) the order of the layers (d) the order of pouring
15. 15.🔮 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) in the oil layer (d) at the very bottom
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: the order of the layers is what we measure. (a) True (b) False
17. 17.🍯 Is a glass marble denser or less dense than water? (a) less dense than water (b) denser than water
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 measure it (b) we change it (c) we keep it the same
19. 19.🧺 Do we need a mirror for the density tower? (a) needed (b) not needed
20. 20.🔍 Which is the odd one out? (a) air (b) a cork (c) an ice cube (d) a glass marble
21. 21.🍯 Which of these is denser than water? (a) an ice cube (b) honey (c) a cork (d) cooking oil
22. 22.🧺 Which of these is not needed for the density tower? (a) water with food colour (b) a tall clear glass (c) honey (d) yeast
23. 23.🍯 Is a coin denser or less dense than water? (a) less dense than water (b) denser than water
24. 24.True or false: a coin is less dense than water. (a) False (b) True
25. 25.🍯 Which of these is less dense than water? (a) very salty water (b) an ice cube (c) a coin (d) honey
26. 26.True or false: a pebble is less dense than water. (a) False (b) True
27. 27.🔍 Which layer is on top in the honey-water-oil tower? (a) honey (b) cooking oil (c) coloured water (d) the spoon
28. 28.True or false: an ice cube is less dense than water. (a) True (b) False
29. 29.🛟 Which rule keeps the density tower experiment safe? (a) throw the glass (b) pour it on the floor (c) do not lick the spoon (d) taste each layer
30. 30.⚖️ 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 same glass (c) the order of the layers (d) the order of pouring
31. 31.True or false: a balloon is needed for the density tower. (a) True (b) False
32. 32.🧺 Which of these is needed for the density tower? (a) turmeric powder (b) a mirror (c) a spoon (d) a magnet
33. 33.🛟 Why should we wipe up spilled oil at once? (a) oil makes it rain (b) spilled oil is slippery (c) oil turns into honey (d) oil attracts magnets
34. 34.📘 What does “dense” mean? (a) very hot (b) very thin (c) very colourful (d) heavy for its size
35. 35.🧺 Which of these is not needed for the density tower? (a) a balloon (b) a tall clear glass (c) a spoon (d) cooking oil
36. 36.🔍 Which is the odd one out? (a) a pebble (b) a glass marble (c) an ice cube (d) very salty water
37. 37.⚖️ 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 keep it the same (b) we change it (c) we measure it
38. 38.🍯 Is a pebble denser or less dense than water? (a) less dense than water (b) denser than water
39. 39.True or false: air is less dense than water. (a) True (b) False
40. 40.True or false: cooking oil is needed for the density tower. (a) False (b) True

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