Density Tower Experiment Worksheet

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

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