Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 684 · 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.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) cooking oil (b) yeast (c) a spoon (d) water with food colour
2. 2.🧺 Do we need water with food colour for the density tower? (a) not needed (b) needed
3. 3.True or false: a tall clear glass is not needed for the density tower. (a) True (b) False
4. 4.⚖️ 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) 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? True or false: the order of pouring is the one thing we change. (a) False (b) True
6. 6.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a magnet (b) honey (c) a tall clear glass (d) water with food colour
7. 7.🧺 Do we need yeast for the density tower? (a) not needed (b) needed
8. 8.🍯 Which of these is denser than water? (a) an ice cube (b) air (c) a cork (d) a glass marble
9. 9.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a balloon (b) water with food colour (c) cooking oil (d) a spoon
10. 10.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they separate again (b) they become solid (c) they mix for ever (d) they turn to honey
11. 11.⚖️ 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 order of the layers (c) how much of each liquid
12. 12.🍯 Which of these is denser than water? (a) an ice cube (b) air (c) a ping-pong ball (d) very salty water
13. 13.🫗 Why does cooking oil float on top of water? (a) oil is heavier (b) oil is hot (c) oil is sticky (d) oil is less dense
14. 14.🔍 Which is the odd one out? (a) air (b) a pebble (c) honey (d) very salty water
15. 15.🛟 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
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 the one thing we change? (a) the same glass (b) the order of the layers (c) the order of pouring (d) the same three liquids
17. 17.🍯 Is honey denser or less dense than water? (a) denser than water (b) less dense than water
18. 18.🧺 Do we need honey for the density tower? (a) needed (b) not needed
19. 19.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) in the honey layer (b) on top of the oil (c) in the water layer (d) under the honey
20. 20.🧺 Which of these is not needed for the density tower? (a) water with food colour (b) honey (c) a tall clear glass (d) a battery cell
21. 21.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) turmeric powder (b) a spoon (c) cooking oil (d) a tall clear glass
22. 22.🧺 Which of these is not needed for the density tower? (a) a tall clear glass (b) water with food colour (c) a balloon (d) cooking oil
23. 23.🧺 Do we need a balloon for the density tower? (a) needed (b) not needed
24. 24.⚖️ 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 kept the same. (a) True (b) False
25. 25.🧺 Which of these is not needed for the density tower? (a) honey (b) cooking oil (c) a mirror (d) a tall clear glass
26. 26.⚖️ 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 what we measure. (a) True (b) False
27. 27.True or false: a spoon is needed for the density tower. (a) True (b) False
28. 28.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) cooking oil (b) a mirror (c) water with food colour (d) honey
29. 29.🔍 What do you see after pouring honey, water and oil into one glass? (a) bubbles of gas (b) one mixed colour (c) the glass gets hot (d) three separate layers
30. 30.⚖️ 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 the layers (c) the order of pouring
31. 31.⚖️ 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
32. 32.🔍 Which layer is on top in the honey-water-oil tower? (a) coloured water (b) cooking oil (c) the spoon (d) honey
33. 33.🍯 Is air denser or less dense than water? (a) less dense than water (b) denser than water
34. 34.🍯 Is cooking oil denser or less dense than water? (a) denser than water (b) less dense than water
35. 35.🍯 Which of these is denser than water? (a) a pebble (b) a cork (c) cooking oil (d) air
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 order of the layers”? (a) we measure it (b) we change it (c) we keep it the same
37. 37.🧺 Do we need cooking oil for the density tower? (a) not needed (b) needed
38. 38.🧺 Do we need a battery cell for the density tower? (a) not needed (b) needed
39. 39.🔍 Which is the odd one out? (a) a cork (b) a glass marble (c) cooking oil (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 glass is kept the same. (a) False (b) True

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