Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 69 · 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 denser than water? (a) cooking oil (b) a ping-pong ball (c) honey (d) a cork
2. 2.True or false: a glass marble is denser than water. (a) False (b) True
3. 3.🧺 Do we need a balloon for the density tower? (a) not needed (b) needed
4. 4.🔍 Which is the odd one out? (a) an ice cube (b) a ping-pong ball (c) air (d) a coin
5. 5.🔍 Which is the odd one out? (a) very salty water (b) a glass marble (c) honey (d) an ice cube
6. 6.True or false: a battery cell is needed for the density tower. (a) False (b) True
7. 7.🍯 Why does honey sink to the bottom of the glass? (a) it is the densest (b) it is the coldest (c) it is the stickiest (d) it is yellow
8. 8.🛟 Why should we wipe up spilled oil at once? (a) oil turns into honey (b) oil makes it rain (c) oil attracts magnets (d) spilled oil is slippery
9. 9.🔍 Which is the odd one out? (a) honey (b) cooking oil (c) a cork (d) air
10. 10.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a tall clear glass (b) water with food colour (c) a balloon (d) a spoon
11. 11.True or false: a spoon is not needed for the density tower. (a) False (b) True
12. 12.🔍 Which is the odd one out? (a) very salty water (b) honey (c) a ping-pong ball (d) a glass marble
13. 13.🍯 Is a cork denser or less dense than water? (a) less dense than water (b) denser than water
14. 14.🔮 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 separate again (d) they mix for ever
15. 15.🫗 Why does cooking oil float on top of water? (a) oil is heavier (b) oil is sticky (c) oil is less dense (d) oil is hot
16. 16.⚖️ 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) the same glass (c) how much of each liquid (d) the order of pouring
17. 17.True or false: cooking oil is not needed for the density tower. (a) True (b) False
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 “how much of each liquid”? (a) we keep it the same (b) we change it (c) we measure it
19. 19.🛟 Which rule keeps the density tower experiment safe? (a) taste each layer (b) do not lick the spoon (c) throw the glass (d) pour it on the floor
20. 20.⚖️ 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
21. 21.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) in the water layer (b) under the honey (c) in the honey layer (d) on top of the oil
22. 22.🔍 Which is the odd one out? (a) air (b) an ice cube (c) a pebble (d) a cork
23. 23.🧺 Do we need cooking oil for the density tower? (a) needed (b) not needed
24. 24.🧺 Which of these is needed for the density tower? (a) a balloon (b) a mirror (c) a battery cell (d) a spoon
25. 25.True or false: a magnet is not needed for the density tower. (a) False (b) True
26. 26.⚖️ 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
27. 27.🧺 Which of these is needed for the density tower? (a) a tall clear glass (b) a battery cell (c) a balloon (d) a mirror
28. 28.⚖️ 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
29. 29.🔮 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) at the very bottom (d) in the oil layer
30. 30.True or false: a balloon is not needed for the density tower. (a) False (b) True
31. 31.🧺 Do we need water with food colour for the density tower? (a) needed (b) not needed
32. 32.⚖️ 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 kept the same. (a) True (b) False
33. 33.🍯 Which of these is less dense than water? (a) a pebble (b) very salty water (c) a glass marble (d) an ice cube
34. 34.⚖️ 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 pouring (c) the same three liquids (d) the order of the layers
35. 35.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a tall clear glass (b) a spoon (c) cooking oil (d) a mirror
36. 36.🧺 Do we need a mirror for the density tower? (a) needed (b) not needed
37. 37.🍯 Is cooking oil denser or less dense than water? (a) denser than water (b) less dense than water
38. 38.True or false: cooking oil is needed for the density tower. (a) False (b) True
39. 39.🍯 Is a pebble denser or less dense than water? (a) denser than water (b) less dense than water
40. 40.📘 What does “dense” mean? (a) very colourful (b) very thin (c) very hot (d) heavy for its size

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