Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 763 · 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? Which of these is kept the same? (a) the same three liquids (b) the order of pouring (c) the order of the layers
2. 2.True or false: water with food colour is not needed for the density tower. (a) True (b) False
3. 3.True or false: cooking oil is needed for the density tower. (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 measure it (b) we keep it the same (c) we change it
5. 5.⚖️ 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
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 kept the same? (a) the order of pouring (b) the same glass (c) the order of the layers
7. 7.🍯 Which of these is denser than water? (a) a ping-pong ball (b) a pebble (c) air (d) a cork
8. 8.🔮 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
9. 9.⚖️ 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 same glass (d) the order of the layers
10. 10.🍯 Which of these is denser than water? (a) a cork (b) air (c) cooking oil (d) a glass marble
11. 11.🍯 Is air denser or less dense than water? (a) denser than water (b) less dense than water
12. 12.🍯 Is a glass marble denser or less dense than water? (a) denser than water (b) less dense than water
13. 13.🧺 Do we need turmeric powder for the density tower? (a) not needed (b) needed
14. 14.🧺 Which of these is not needed for the density tower? (a) a spoon (b) a tall clear glass (c) a battery cell (d) cooking oil
15. 15.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a magnet (b) a spoon (c) a tall clear glass (d) honey
16. 16.⚖️ 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
17. 17.🫗 Why does cooking oil float on top of water? (a) oil is sticky (b) oil is less dense (c) oil is hot (d) oil is heavier
18. 18.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) under the honey (b) in the honey layer (c) in the water layer (d) on top of the oil
19. 19.🛟 Why should we wipe up spilled oil at once? (a) oil makes it rain (b) oil attracts magnets (c) oil turns into honey (d) spilled oil is slippery
20. 20.True or false: cooking oil is less dense than water. (a) True (b) False
21. 21.True or false: very salty water is less dense than water. (a) True (b) False
22. 22.🍯 Which of these is less dense than water? (a) a coin (b) a cork (c) very salty water (d) a pebble
23. 23.🍯 Which of these is less dense than water? (a) cooking oil (b) honey (c) a coin (d) very salty water
24. 24.True or false: cooking oil 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? What do we do with “the order of pouring”? (a) we keep it the same (b) we measure it (c) we change it
26. 26.🧺 Do we need a spoon for the density tower? (a) needed (b) not needed
27. 27.🧺 Which of these is needed for the density tower? (a) a balloon (b) a mirror (c) a tall clear glass (d) a magnet
28. 28.🛟 Which rule keeps the density tower experiment safe? (a) pour it on the floor (b) taste each layer (c) throw the glass (d) do not lick the spoon
29. 29.🧺 Which of these is not needed for the density tower? (a) a magnet (b) water with food colour (c) cooking oil (d) honey
30. 30.🧺 Which of these is not needed for the density tower? (a) a spoon (b) a mirror (c) a tall clear glass (d) honey
31. 31.🧺 Do we need honey for the density tower? (a) not needed (b) needed
32. 32.🍯 Is a coin denser or less dense than water? (a) less dense than water (b) denser than water
33. 33.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) honey (b) water with food colour (c) a balloon (d) cooking oil
34. 34.🍯 Why does honey sink to the bottom of the glass? (a) it is yellow (b) it is the densest (c) it is the coldest (d) it is the stickiest
35. 35.🔍 Which is the odd one out? (a) cooking oil (b) a coin (c) honey (d) very salty water
36. 36.🍯 Which of these is denser than water? (a) cooking oil (b) air (c) a ping-pong ball (d) honey
37. 37.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a battery cell (b) water with food colour (c) a spoon (d) cooking oil
38. 38.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) honey (b) cooking oil (c) a tall clear glass (d) turmeric powder
39. 39.🔍 Which is the odd one out? (a) a glass marble (b) very salty water (c) a pebble (d) a cork
40. 40.🔍 Which is the odd one out? (a) a pebble (b) honey (c) very salty water (d) air

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