Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 579 · 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.⚖️ 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 kept the same. (a) True (b) False
2. 2.🍯 Why does honey sink to the bottom of the glass? (a) it is yellow (b) it is the coldest (c) it is the stickiest (d) it is the densest
3. 3.🍯 Is a pebble denser or less dense than water? (a) less dense than water (b) denser than water
4. 4.True or false: an ice cube is less dense 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? Which of these is what we measure? (a) the order of the layers (b) the same glass (c) the same three liquids (d) how much of each liquid
6. 6.⚖️ 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) True (b) False
7. 7.🧺 Do we need a mirror for the density tower? (a) not needed (b) needed
8. 8.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? True or false: how much of each liquid is kept the same. (a) False (b) True
9. 9.True or false: honey is less dense than water. (a) False (b) True
10. 10.🍯 Is a glass marble denser or less dense than water? (a) denser than water (b) less dense than water
11. 11.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) in the honey layer (b) in the water layer (c) on top of the oil (d) under the honey
12. 12.🧺 Do we need water with food colour for the density tower? (a) needed (b) not needed
13. 13.🫗 Why does cooking oil float on top of water? (a) oil is sticky (b) oil is hot (c) oil is less dense (d) oil is heavier
14. 14.⚖️ 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 measure it (c) we change it
15. 15.🧺 Which of these is not needed for the density tower? (a) a tall clear glass (b) a spoon (c) honey (d) a magnet
16. 16.🍯 Which of these is denser than water? (a) a ping-pong ball (b) air (c) cooking oil (d) honey
17. 17.🍯 Is very salty water denser or less dense than water? (a) less dense than water (b) denser than water
18. 18.True or false: a magnet is needed for the density tower. (a) True (b) False
19. 19.True or false: an ice cube is denser than water. (a) True (b) False
20. 20.🍯 Which of these is less dense than water? (a) a glass marble (b) a coin (c) a pebble (d) a cork
21. 21.True or false: yeast is needed for the density tower. (a) False (b) True
22. 22.🔮 Predict: you gently drop a coin into the tower. Where does it end up? (a) in the water layer (b) at the very bottom (c) in the oil layer (d) on top of the oil
23. 23.🧺 Do we need a battery cell for the density tower? (a) not needed (b) needed
24. 24.True or false: a tall clear glass is needed for the density tower. (a) False (b) True
25. 25.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) water with food colour (b) cooking oil (c) a tall clear glass (d) a mirror
26. 26.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) cooking oil (b) water with food colour (c) a spoon (d) a magnet
27. 27.🍯 Which of these is denser than water? (a) a glass marble (b) air (c) a ping-pong ball (d) cooking oil
28. 28.🧺 Which of these is not needed for the density tower? (a) yeast (b) a tall clear glass (c) a spoon (d) water with food colour
29. 29.🔍 Which layer is on top in the honey-water-oil tower? (a) cooking oil (b) coloured water (c) the spoon (d) honey
30. 30.True or false: a spoon is needed for the density tower. (a) False (b) True
31. 31.🍯 Which of these is denser than water? (a) a cork (b) cooking oil (c) air (d) very salty water
32. 32.🧺 Do we need cooking oil for the density tower? (a) needed (b) not needed
33. 33.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a tall clear glass (b) a balloon (c) honey (d) a spoon
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 same glass is kept the same. (a) False (b) True
35. 35.⚖️ 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 the layers (c) the order of pouring
36. 36.True or false: water with food colour is not needed for the density tower. (a) False (b) True
37. 37.🔍 Which is the odd one out? (a) cooking oil (b) a ping-pong ball (c) a cork (d) a glass marble
38. 38.🍯 Is a coin denser or less dense than water? (a) less dense than water (b) denser than water
39. 39.🔍 Which is the odd one out? (a) an ice cube (b) air (c) a pebble (d) a ping-pong ball
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 same three liquids is the one thing we change. (a) False (b) True

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