Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 453 · 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) taste each layer (b) pour it on the floor (c) do not lick the spoon (d) throw the glass
2. 2.⚖️ 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
3. 3.True or false: an ice cube is denser than water. (a) False (b) True
4. 4.⚖️ 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 change it (b) we keep it the same (c) we measure it
5. 5.True or false: a spoon is needed for the density tower. (a) False (b) True
6. 6.🍯 Is honey denser or less dense than water? (a) less dense than water (b) denser than water
7. 7.⚖️ 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 measure it (b) we change it (c) we keep it the same
8. 8.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) cooking oil (b) a spoon (c) honey (d) a mirror
9. 9.🧺 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
10. 10.🧺 Do we need a mirror for the density tower? (a) needed (b) not needed
11. 11.🍯 Is a glass marble denser or less dense than water? (a) denser than water (b) less dense than water
12. 12.🍯 Which of these is less dense than water? (a) a glass marble (b) honey (c) a pebble (d) cooking oil
13. 13.True or false: cooking oil is less dense than water. (a) False (b) True
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 kept the same? (a) the same glass (b) the order of the layers (c) the order of pouring
15. 15.⚖️ 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 same three liquids (c) the order of the layers (d) the same glass
16. 16.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they separate again (b) they become solid (c) they turn to honey (d) they mix for ever
17. 17.🍯 Why does honey sink to the bottom of the glass? (a) it is yellow (b) it is the coldest (c) it is the densest (d) it is the stickiest
18. 18.🛟 Why should we wipe up spilled oil at once? (a) oil turns into honey (b) spilled oil is slippery (c) oil makes it rain (d) oil attracts magnets
19. 19.True or false: a coin is less dense than water. (a) False (b) True
20. 20.🧺 Do we need a magnet for the density tower? (a) not needed (b) needed
21. 21.True or false: a pebble is less dense than water. (a) True (b) False
22. 22.🧺 Do we need a battery cell for the density tower? (a) not needed (b) needed
23. 23.True or false: yeast is needed for the density tower. (a) True (b) False
24. 24.True or false: a cork is denser than water. (a) True (b) False
25. 25.⚖️ 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) how much of each liquid (b) the order of pouring (c) the order of the layers
26. 26.True or false: a battery cell is needed for the density tower. (a) True (b) False
27. 27.🍯 Which of these is denser than water? (a) very salty water (b) cooking oil (c) a ping-pong ball (d) an ice cube
28. 28.⚖️ 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 what we measure. (a) False (b) True
29. 29.🫗 Why does cooking oil float on top of water? (a) oil is hot (b) oil is heavier (c) oil is sticky (d) oil is less dense
30. 30.🧺 Do we need honey for the density tower? (a) not needed (b) needed
31. 31.True or false: very salty water is denser than water. (a) False (b) True
32. 32.True or false: cooking oil is needed for the density tower. (a) True (b) False
33. 33.🔮 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
34. 34.🔍 Which is the odd one out? (a) a pebble (b) a glass marble (c) honey (d) air
35. 35.⚖️ 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 the one thing we change. (a) True (b) False
36. 36.🧺 Do we need cooking oil for the density tower? (a) not needed (b) needed
37. 37.🧺 Which of these is needed for the density tower? (a) yeast (b) a balloon (c) turmeric powder (d) water with food colour
38. 38.⚖️ 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 keep it the same (c) we change it
39. 39.🍯 Which of these is denser than water? (a) an ice cube (b) cooking oil (c) a cork (d) a pebble
40. 40.True or false: a magnet is needed for the density tower. (a) False (b) True

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