Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 138 · 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.True or false: cooking oil is less dense than water. (a) False (b) True
2. 2.True or false: an ice cube is denser than water. (a) False (b) True
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 same glass”? (a) we change it (b) we keep it the same (c) we measure it
4. 4.🧺 Which of these is needed for the density tower? (a) yeast (b) a balloon (c) cooking oil (d) a mirror
5. 5.⚖️ 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
6. 6.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a spoon (b) a tall clear glass (c) yeast (d) honey
7. 7.🔮 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
8. 8.🔍 Which is the odd one out? (a) cooking oil (b) very salty water (c) a cork (d) an ice cube
9. 9.🍯 Is a glass marble denser or less dense than water? (a) less dense than water (b) denser than water
10. 10.🍯 Is a ping-pong ball denser or less dense than water? (a) denser than water (b) less dense than water
11. 11.⚖️ 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
12. 12.🛟 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
13. 13.🧺 Do we need cooking oil for the density tower? (a) needed (b) not needed
14. 14.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) water with food colour (b) a tall clear glass (c) a balloon (d) honey
15. 15.🧺 Do we need a spoon for the density tower? (a) needed (b) not needed
16. 16.🛟 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
17. 17.True or false: a balloon is not needed for the density tower. (a) False (b) True
18. 18.⚖️ 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 three liquids (b) the order of pouring (c) the order of the layers
19. 19.True or false: a cork is denser than water. (a) False (b) True
20. 20.🧺 Do we need turmeric powder for the density tower? (a) not needed (b) needed
21. 21.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) under the honey (b) in the honey layer (c) on top of the oil (d) in the water layer
22. 22.🍯 Which of these is less dense than water? (a) honey (b) a pebble (c) air (d) a coin
23. 23.🧺 Which of these is not needed for the density tower? (a) honey (b) a tall clear glass (c) a spoon (d) a magnet
24. 24.📘 What does “dense” mean? (a) heavy for its size (b) very thin (c) very colourful (d) very hot
25. 25.True or false: a magnet is needed for the density tower. (a) True (b) False
26. 26.🍯 Is air denser or less dense than water? (a) denser than water (b) less dense than water
27. 27.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a tall clear glass (b) honey (c) cooking oil (d) a magnet
28. 28.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they mix for ever (b) they turn to honey (c) they become solid (d) they separate again
29. 29.True or false: turmeric powder is not needed for the density tower. (a) True (b) False
30. 30.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) water with food colour (b) a battery cell (c) a tall clear glass (d) cooking oil
31. 31.🧺 Which of these is needed for the density tower? (a) a balloon (b) a battery cell (c) a magnet (d) honey
32. 32.🫗 Why does cooking oil float on top of water? (a) oil is heavier (b) oil is less dense (c) oil is hot (d) oil is sticky
33. 33.True or false: honey is less dense than water. (a) True (b) False
34. 34.⚖️ 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
35. 35.🍯 Which of these is less dense than water? (a) very salty water (b) a coin (c) cooking oil (d) a glass marble
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 what we measure? (a) the same glass (b) the order of the layers (c) the order of pouring (d) how much of each liquid
37. 37.🔍 Which is the odd one out? (a) an ice cube (b) cooking oil (c) a pebble (d) air
38. 38.True or false: a pebble is denser than water. (a) False (b) True
39. 39.⚖️ 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 change it (c) we measure it
40. 40.🍯 Is a coin denser or less dense than water? (a) denser than water (b) less dense than water

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