Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 128 · 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 rule keeps the density tower experiment safe? (a) pour it on the floor (b) do not lick the spoon (c) throw the glass (d) taste each layer
2. 2.🍯 Which of these is denser than water? (a) cooking oil (b) very salty water (c) air (d) a cork
3. 3.🍯 Is cooking oil denser or less dense than water? (a) less dense than water (b) denser than water
4. 4.True or false: a ping-pong ball is denser than water. (a) True (b) False
5. 5.⚖️ 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 measure it (c) we keep it the same
6. 6.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they turn to honey (b) they mix for ever (c) they become solid (d) they separate again
7. 7.⚖️ 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 what we measure. (a) False (b) True
8. 8.🔮 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
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 order of the layers”? (a) we measure it (b) we keep it the same (c) we change it
10. 10.True or false: a glass marble is less dense than water. (a) False (b) True
11. 11.True or false: honey is needed for the density tower. (a) False (b) True
12. 12.True or false: yeast is needed for the density tower. (a) False (b) True
13. 13.🛟 Why should we wipe up spilled oil at once? (a) spilled oil is slippery (b) oil makes it rain (c) oil turns into honey (d) oil attracts magnets
14. 14.🍯 Why does honey sink to the bottom of the glass? (a) it is the stickiest (b) it is the densest (c) it is the coldest (d) it is yellow
15. 15.🔍 Which is the odd one out? (a) air (b) an ice cube (c) a ping-pong ball (d) very salty water
16. 16.🫗 Why does cooking oil float on top of water? (a) oil is hot (b) oil is heavier (c) oil is less dense (d) oil is sticky
17. 17.🔍 Which is the odd one out? (a) honey (b) a coin (c) a glass marble (d) a ping-pong ball
18. 18.🧺 Which of these is not needed for the density tower? (a) a mirror (b) a spoon (c) water with food colour (d) cooking oil
19. 19.🔍 Which is the odd one out? (a) a coin (b) very salty water (c) air (d) honey
20. 20.True or false: cooking oil is needed for the density tower. (a) False (b) True
21. 21.True or false: a battery cell is needed for the density tower. (a) True (b) False
22. 22.True or false: air is less dense than water. (a) False (b) True
23. 23.⚖️ 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 change it (b) we measure it (c) we keep it the same
24. 24.⚖️ 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 same three liquids (b) the same glass (c) the order of the layers (d) the order of pouring
25. 25.True or false: a balloon is needed for the density tower. (a) True (b) False
26. 26.⚖️ 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
27. 27.True or false: a tall clear glass is needed for the density tower. (a) True (b) False
28. 28.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) cooking oil (b) a spoon (c) a magnet (d) a tall clear glass
29. 29.🧺 Do we need honey for the density tower? (a) not needed (b) needed
30. 30.True or false: cooking oil is less dense than water. (a) False (b) True
31. 31.⚖️ 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) False (b) True
32. 32.🔍 Which is the odd one out? (a) a glass marble (b) an ice cube (c) a coin (d) very salty water
33. 33.🍯 Which of these is less dense than water? (a) honey (b) a glass marble (c) an ice cube (d) a pebble
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 kept the same? (a) the same glass (b) the order of pouring (c) the order of the layers
35. 35.🍯 Which of these is less dense than water? (a) honey (b) a pebble (c) a ping-pong ball (d) a glass marble
36. 36.🍯 Is an ice cube denser or less dense than water? (a) denser than water (b) less dense than water
37. 37.🧺 Which of these is needed for the density tower? (a) a balloon (b) a magnet (c) a spoon (d) turmeric powder
38. 38.True or false: honey is not needed for the density tower. (a) True (b) False
39. 39.🔍 Which is the odd one out? (a) an ice cube (b) cooking oil (c) a cork (d) a pebble
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 order of pouring is the one thing we change. (a) False (b) True

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