Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 564 · 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.🍯 Is a ping-pong ball denser or less dense than water? (a) denser than water (b) less dense than water
2. 2.⚖️ 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) True (b) False
3. 3.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they become solid (b) they separate again (c) they mix for ever (d) they turn to honey
4. 4.True or false: cooking oil is not needed for the density tower. (a) False (b) True
5. 5.True or false: a coin is denser than water. (a) True (b) False
6. 6.True or false: a glass marble is denser than water. (a) False (b) True
7. 7.🧺 Which of these is needed for the density tower? (a) a battery cell (b) honey (c) a magnet (d) a balloon
8. 8.True or false: a tall clear glass is not needed for the density tower. (a) False (b) True
9. 9.🧺 Do we need a magnet 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? What do we do with “the same three liquids”? (a) we change it (b) we measure it (c) we keep it the same
11. 11.🧺 Do we need turmeric powder for the density tower? (a) not needed (b) needed
12. 12.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) turmeric powder (b) a tall clear glass (c) cooking oil (d) a spoon
13. 13.🔍 Which is the odd one out? (a) a ping-pong ball (b) an ice cube (c) cooking oil (d) a pebble
14. 14.⚖️ 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
15. 15.🫗 Why does cooking oil float on top of water? (a) oil is heavier (b) oil is hot (c) oil is less dense (d) oil is sticky
16. 16.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) on top of the oil (b) in the water layer (c) in the honey layer (d) under the honey
17. 17.🧺 Do we need honey for the density tower? (a) not needed (b) needed
18. 18.🍯 Which of these is denser than water? (a) a cork (b) air (c) a ping-pong ball (d) honey
19. 19.🧺 Do we need a mirror for the density tower? (a) not needed (b) needed
20. 20.🍯 Is cooking oil denser or less dense than water? (a) denser than water (b) less dense than water
21. 21.⚖️ 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 order of the layers (c) the same three liquids (d) the order of pouring
22. 22.🍯 Which of these is denser than water? (a) a ping-pong ball (b) air (c) very salty water (d) cooking oil
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 “the order of pouring”? (a) we change it (b) we keep it the same (c) we measure it
24. 24.🧺 Which of these is needed for the density tower? (a) a magnet (b) turmeric powder (c) water with food colour (d) a balloon
25. 25.⚖️ 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 keep it the same (b) we measure it (c) we change it
26. 26.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) cooking oil (b) a spoon (c) honey (d) yeast
27. 27.🧺 Do we need a spoon for the density tower? (a) not needed (b) needed
28. 28.⚖️ 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 keep it the same (b) we measure it (c) we change it
29. 29.🧺 Do we need cooking oil for the density tower? (a) needed (b) not needed
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 what we measure. (a) True (b) False
31. 31.🧺 Do we need yeast for the density tower? (a) not needed (b) needed
32. 32.🧺 Which of these is needed for the density tower? (a) a balloon (b) a tall clear glass (c) a mirror (d) a battery cell
33. 33.🔍 Which is the odd one out? (a) a pebble (b) a glass marble (c) a ping-pong ball (d) a coin
34. 34.🍯 Is a coin denser or less dense than water? (a) less dense than water (b) denser than water
35. 35.🧺 Which of these is not needed for the density tower? (a) a spoon (b) a mirror (c) a tall clear glass (d) cooking oil
36. 36.⚖️ 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
37. 37.🛟 Which rule keeps the density tower experiment safe? (a) throw the glass (b) do not lick the spoon (c) pour it on the floor (d) taste each layer
38. 38.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a mirror (b) honey (c) a tall clear glass (d) water with food colour
39. 39.🍯 Is air denser or less dense than water? (a) denser than water (b) less dense than water
40. 40.True or false: a tall clear glass is needed for the density tower. (a) True (b) False

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