Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 844 · 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.True or false: a ping-pong ball is less dense than water. (a) False (b) True
2. 2.🧺 Which of these is not needed for the density tower? (a) a spoon (b) cooking oil (c) water with food colour (d) turmeric powder
3. 3.🍯 Which of these is denser than water? (a) a cork (b) an ice cube (c) cooking oil (d) a pebble
4. 4.🧺 Do we need water with food colour for the density tower? (a) not needed (b) needed
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 kept the same? (a) the order of pouring (b) how much of each liquid (c) the order of the layers
6. 6.🍯 Is a pebble 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 keep it the same (b) we change it (c) we measure it
8. 8.🔮 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) in the oil layer (d) at the very bottom
9. 9.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they become solid (b) they turn to honey (c) they separate again (d) they mix for ever
10. 10.🧺 Do we need honey for the density tower? (a) needed (b) not needed
11. 11.🧺 Which of these is not needed for the density tower? (a) water with food colour (b) a battery cell (c) a tall clear glass (d) honey
12. 12.🔍 Which layer is on top in the honey-water-oil tower? (a) honey (b) the spoon (c) cooking oil (d) coloured water
13. 13.🔍 Which is the odd one out? (a) cooking oil (b) a cork (c) an ice cube (d) honey
14. 14.📘 What does “dense” mean? (a) heavy for its size (b) very colourful (c) very thin (d) very hot
15. 15.🫗 Why does cooking oil float on top of water? (a) oil is hot (b) oil is sticky (c) oil is less dense (d) oil is heavier
16. 16.🧺 Which of these is needed for the density tower? (a) a balloon (b) yeast (c) cooking oil (d) a magnet
17. 17.⚖️ 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) True (b) False
18. 18.🍯 Why does honey sink to the bottom of the glass? (a) it is the coldest (b) it is the stickiest (c) it is yellow (d) it is the densest
19. 19.🧺 Which of these is needed for the density tower? (a) a magnet (b) a balloon (c) turmeric powder (d) honey
20. 20.🧺 Which of these is not needed for the density tower? (a) a spoon (b) a mirror (c) a tall clear glass (d) cooking oil
21. 21.⚖️ 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) True (b) False
22. 22.True or false: a mirror is not needed for the density tower. (a) True (b) False
23. 23.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a tall clear glass (b) cooking oil (c) yeast (d) honey
24. 24.🧺 Do we need a magnet for the density tower? (a) not needed (b) needed
25. 25.🧺 Which of these is not needed for the density tower? (a) a spoon (b) a tall clear glass (c) cooking oil (d) a magnet
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 the layers”? (a) we change it (b) we measure it (c) we keep it the same
27. 27.True or false: a glass marble is denser than water. (a) False (b) True
28. 28.🍯 Which of these is denser than water? (a) a cork (b) air (c) a ping-pong ball (d) a glass marble
29. 29.⚖️ 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
30. 30.🧺 Which of these is not needed for the density tower? (a) cooking oil (b) yeast (c) a spoon (d) a tall clear glass
31. 31.🍯 Is cooking oil denser or less dense than water? (a) denser than water (b) less dense than water
32. 32.🔍 Which is the odd one out? (a) a cork (b) a ping-pong ball (c) cooking oil (d) very salty water
33. 33.⚖️ 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 three liquids (c) the same glass (d) the order of pouring
34. 34.🧺 Do we need a battery cell for the density tower? (a) not needed (b) needed
35. 35.🧺 Do we need yeast for the density tower? (a) not needed (b) needed
36. 36.True or false: honey is denser than water. (a) False (b) True
37. 37.🍯 Which of these is denser than water? (a) a ping-pong ball (b) an ice cube (c) a cork (d) honey
38. 38.True or false: a tall clear glass is needed for the density tower. (a) True (b) False
39. 39.True or false: a balloon is not needed for the density tower. (a) True (b) False
40. 40.🍯 Is a cork denser or less dense than water? (a) denser than water (b) less dense than water

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