Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 829 · 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.🔮 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
2. 2.🧺 Do we need a magnet for the density tower? (a) not needed (b) needed
3. 3.🧺 Which of these is needed for the density tower? (a) a magnet (b) a balloon (c) turmeric powder (d) water with food colour
4. 4.True or false: a glass marble is less dense than water. (a) False (b) True
5. 5.🍯 Which of these is denser than water? (a) a pebble (b) a ping-pong ball (c) a cork (d) an ice cube
6. 6.True or false: a coin is denser than water. (a) False (b) True
7. 7.🧺 Do we need honey for the density tower? (a) needed (b) not needed
8. 8.True or false: cooking oil is needed for the density tower. (a) False (b) True
9. 9.🔍 Which is the odd one out? (a) very salty water (b) air (c) a glass marble (d) honey
10. 10.🔍 Which is the odd one out? (a) honey (b) cooking oil (c) air (d) a ping-pong ball
11. 11.🍯 Is a cork denser or less dense than water? (a) denser than water (b) less dense than water
12. 12.🔍 What do you see after pouring honey, water and oil into one glass? (a) three separate layers (b) bubbles of gas (c) one mixed colour (d) the glass gets hot
13. 13.🛟 Why should we wipe up spilled oil at once? (a) oil makes it rain (b) spilled oil is slippery (c) oil attracts magnets (d) oil turns into honey
14. 14.⚖️ 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 same three liquids (c) the order of pouring (d) the order of the layers
15. 15.⚖️ 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
16. 16.True or false: cooking oil is less dense than water. (a) False (b) True
17. 17.⚖️ 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 change it (c) we measure it
18. 18.🔮 Predict: you gently drop a coin into the tower. Where does it end up? (a) in the oil layer (b) on top of the oil (c) at the very bottom (d) in the water layer
19. 19.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) in the water layer (b) on top of the oil (c) in the honey layer (d) under the honey
20. 20.True or false: honey is not needed for the density tower. (a) True (b) False
21. 21.🧺 Which of these is needed for the density tower? (a) cooking oil (b) a mirror (c) turmeric powder (d) yeast
22. 22.⚖️ 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 order of pouring (b) the same three liquids (c) the same glass (d) the order of the layers
23. 23.True or false: a glass marble is denser than water. (a) False (b) True
24. 24.🧺 Which of these is not needed for the density tower? (a) a mirror (b) a tall clear glass (c) cooking oil (d) a spoon
25. 25.🍯 Is a pebble denser or less dense than water? (a) denser than water (b) less dense than 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 glass”? (a) we change it (b) we keep it the same (c) we measure it
27. 27.🍯 Which of these is less dense than water? (a) honey (b) a coin (c) a cork (d) very salty water
28. 28.⚖️ 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 what we measure. (a) True (b) False
29. 29.🧺 Which of these is not needed for the density tower? (a) cooking oil (b) water with food colour (c) a magnet (d) honey
30. 30.🔍 Which is the odd one out? (a) a cork (b) a ping-pong ball (c) an ice cube (d) a pebble
31. 31.🍯 Which of these is denser than water? (a) cooking oil (b) air (c) a coin (d) an ice cube
32. 32.🫗 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
33. 33.🧺 Which of these is needed for the density tower? (a) a battery cell (b) a balloon (c) a spoon (d) turmeric powder
34. 34.🍯 Is cooking oil denser or less dense than water? (a) less dense than water (b) denser than water
35. 35.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) cooking oil (b) water with food colour (c) a balloon (d) a spoon
36. 36.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) turmeric powder (b) a spoon (c) cooking oil (d) water with food colour
37. 37.True or false: a balloon is not needed for the density tower. (a) True (b) False
38. 38.🧺 Do we need yeast for the density tower? (a) needed (b) not needed
39. 39.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) cooking oil (b) yeast (c) honey (d) a spoon
40. 40.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) cooking oil (b) water with food colour (c) a mirror (d) a tall clear glass

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