Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 228 · 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? What do we do with “the same glass”? (a) we keep it the same (b) we change it (c) we measure it
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 three liquids is the one thing we change. (a) True (b) False
3. 3.True or false: cooking oil is denser than water. (a) True (b) False
4. 4.🛟 Why should we wipe up spilled oil at once? (a) oil attracts magnets (b) spilled oil is slippery (c) oil makes it rain (d) oil turns into honey
5. 5.🍯 Which of these is less dense than water? (a) a pebble (b) a coin (c) honey (d) a ping-pong ball
6. 6.🧺 Which of these is needed for the density tower? (a) cooking oil (b) a magnet (c) yeast (d) a battery cell
7. 7.True or false: a tall clear glass is not needed for the density tower. (a) False (b) True
8. 8.🔍 Which is the odd one out? (a) a coin (b) very salty water (c) a ping-pong ball (d) honey
9. 9.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) yeast (b) water with food colour (c) cooking oil (d) honey
10. 10.⚖️ 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 the layers (b) the same glass (c) the same three liquids (d) the order of pouring
11. 11.🔍 What do you see after pouring honey, water and oil into one glass? (a) the glass gets hot (b) one mixed colour (c) three separate layers (d) bubbles of gas
12. 12.⚖️ 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) False (b) True
13. 13.⚖️ 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
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 pouring is kept the same. (a) True (b) False
15. 15.🧺 Do we need honey for the density tower? (a) not needed (b) needed
16. 16.🔍 Which is the odd one out? (a) air (b) cooking oil (c) a ping-pong ball (d) honey
17. 17.🧺 Do we need turmeric powder for the density tower? (a) needed (b) not needed
18. 18.⚖️ 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 keep it the same (c) we measure it
19. 19.🔍 Which layer is on top in the honey-water-oil tower? (a) the spoon (b) coloured water (c) honey (d) cooking oil
20. 20.🧺 Which of these is needed for the density tower? (a) honey (b) a mirror (c) a magnet (d) a battery cell
21. 21.True or false: a coin is less dense than water. (a) True (b) False
22. 22.🔍 Which is the odd one out? (a) a pebble (b) a glass marble (c) an ice cube (d) a coin
23. 23.🔍 Which is the odd one out? (a) a coin (b) air (c) a glass marble (d) a pebble
24. 24.🔍 Which is the odd one out? (a) air (b) cooking oil (c) a coin (d) a ping-pong ball
25. 25.True or false: yeast is not needed for the density tower. (a) False (b) True
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 pouring”? (a) we measure it (b) we change it (c) we keep it the same
27. 27.True or false: a pebble is less dense than water. (a) True (b) False
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 change it (c) we measure it
29. 29.🧺 Do we need cooking oil for the density tower? (a) not needed (b) needed
30. 30.🫗 Why does cooking oil float on top of water? (a) oil is sticky (b) oil is heavier (c) oil is less dense (d) oil is hot
31. 31.True or false: a glass marble is less dense than water. (a) True (b) False
32. 32.⚖️ 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 keep it the same (b) we measure it (c) we change it
33. 33.🍯 Which of these is less dense than water? (a) a pebble (b) very salty water (c) air (d) honey
34. 34.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) in the honey layer (b) under the honey (c) in the water layer (d) on top of the oil
35. 35.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they mix for ever (b) they turn to honey (c) they become solid (d) they separate again
36. 36.True or false: cooking oil is needed for the density tower. (a) True (b) False
37. 37.🍯 Is very salty water denser or less dense than water? (a) less dense than water (b) denser than water
38. 38.⚖️ 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
39. 39.⚖️ 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
40. 40.🧺 Do we need yeast for the density tower? (a) needed (b) not needed

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