Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 781 · 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.🧺 Do we need yeast for the density tower? (a) not needed (b) needed
2. 2.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a tall clear glass (b) honey (c) a spoon (d) yeast
3. 3.🧺 Which of these is not needed for the density tower? (a) a spoon (b) a balloon (c) honey (d) cooking oil
4. 4.True or false: a pebble is denser than water. (a) False (b) True
5. 5.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a magnet (b) water with food colour (c) cooking oil (d) a tall clear glass
6. 6.⚖️ 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 glass (b) the order of pouring (c) the same three liquids (d) how much of each liquid
7. 7.🔍 Which is the odd one out? (a) very salty water (b) a glass marble (c) honey (d) a cork
8. 8.⚖️ 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 the layers (b) the order of pouring (c) the same three liquids
9. 9.🧺 Do we need a battery cell for the density tower? (a) not needed (b) needed
10. 10.⚖️ 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
11. 11.🧺 Do we need a mirror for the density tower? (a) not needed (b) needed
12. 12.🔍 Which is the odd one out? (a) cooking oil (b) a cork (c) very salty water (d) air
13. 13.🔍 Which layer is on top in the honey-water-oil tower? (a) cooking oil (b) coloured water (c) honey (d) the spoon
14. 14.🔍 Which is the odd one out? (a) a glass marble (b) honey (c) an ice cube (d) very salty water
15. 15.🍯 Is an ice cube denser or less dense than water? (a) less dense than water (b) denser than water
16. 16.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) cooking oil (b) water with food colour (c) honey (d) a balloon
17. 17.🧺 Do we need a tall clear glass for the density tower? (a) not needed (b) needed
18. 18.🧺 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) turmeric powder (d) honey
19. 19.⚖️ 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 order of the layers (d) the same three liquids
20. 20.🍯 Which of these is denser than water? (a) an ice cube (b) cooking oil (c) air (d) very salty water
21. 21.🔮 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
22. 22.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) in the honey layer (b) under the honey (c) on top of the oil (d) in the water layer
23. 23.🧺 Do we need water with food colour for the density tower? (a) not needed (b) needed
24. 24.🧺 Which of these is not needed for the density tower? (a) water with food colour (b) a tall clear glass (c) turmeric powder (d) honey
25. 25.🔍 Which is the odd one out? (a) a ping-pong ball (b) a coin (c) honey (d) very salty water
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 same three liquids”? (a) we change it (b) we measure it (c) we keep it the same
27. 27.🧺 Do we need a balloon for the density tower? (a) needed (b) not needed
28. 28.🧺 Which of these is needed for the density tower? (a) a balloon (b) a mirror (c) cooking oil (d) a magnet
29. 29.🍯 Which of these is less dense than water? (a) honey (b) a glass marble (c) very salty water (d) cooking oil
30. 30.⚖️ 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 kept the same. (a) False (b) True
31. 31.🔍 Which is the odd one out? (a) a pebble (b) a glass marble (c) cooking oil (d) honey
32. 32.🧺 Which of these is not needed for the density tower? (a) a tall clear glass (b) a spoon (c) water with food colour (d) a magnet
33. 33.True or false: very salty water is denser than water. (a) False (b) True
34. 34.🧺 Which of these is not needed for the density tower? (a) a tall clear glass (b) water with food colour (c) honey (d) a mirror
35. 35.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a tall clear glass (b) cooking oil (c) water with food colour (d) a battery cell
36. 36.⚖️ 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 change it (c) we keep it the same
37. 37.🍯 Is a cork denser or less dense than water? (a) less dense than water (b) denser than water
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 “how much of each liquid”? (a) we measure it (b) we change it (c) we keep it the same
39. 39.True or false: a cork is less dense than water. (a) True (b) False
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: how much of each liquid is kept the same. (a) True (b) False

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