Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 718 · 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.🍯 Which of these is denser than water? (a) very salty water (b) air (c) cooking oil (d) a cork
2. 2.⚖️ 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 three liquids (b) the same glass (c) the order of the layers (d) the order of pouring
3. 3.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they turn to honey (b) they separate again (c) they mix for ever (d) they become solid
4. 4.🧺 Do we need a spoon for the density tower? (a) needed (b) not needed
5. 5.🔍 Which is the odd one out? (a) cooking oil (b) a glass marble (c) a pebble (d) honey
6. 6.🔮 Predict: you gently drop a coin into the tower. Where does it end up? (a) at the very bottom (b) in the water layer (c) in the oil layer (d) on top of the oil
7. 7.🍯 Is cooking oil denser or less dense than water? (a) less dense than water (b) denser than water
8. 8.True or false: cooking oil is denser than water. (a) False (b) True
9. 9.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) water with food colour (b) cooking oil (c) a battery cell (d) honey
10. 10.True or false: a coin is less dense than water. (a) False (b) True
11. 11.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) honey (b) a tall clear glass (c) a mirror (d) a spoon
12. 12.🧺 Which of these is not needed for the density tower? (a) cooking oil (b) water with food colour (c) a magnet (d) honey
13. 13.🫗 Why does cooking oil float on top of water? (a) oil is hot (b) oil is sticky (c) oil is heavier (d) oil is less dense
14. 14.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) in the honey layer (b) in the water layer (c) under the honey (d) on top of the oil
15. 15.🧺 Which of these is needed for the density tower? (a) a battery cell (b) a magnet (c) a mirror (d) cooking oil
16. 16.⚖️ 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 measure it (c) we keep it the same
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 “the order of pouring”? (a) we change it (b) we measure it (c) we keep it the same
18. 18.🧺 Which of these is needed for the density tower? (a) a battery cell (b) turmeric powder (c) yeast (d) water with food colour
19. 19.⚖️ 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 glass (b) the order of pouring (c) the order of the layers
20. 20.🔍 Which is the odd one out? (a) a glass marble (b) a coin (c) a ping-pong ball (d) very salty water
21. 21.⚖️ 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 change it (b) we keep it the same (c) we measure it
22. 22.🔍 Which is the odd one out? (a) honey (b) a coin (c) very salty water (d) air
23. 23.🧺 Which of these is needed for the density tower? (a) a tall clear glass (b) a balloon (c) yeast (d) a battery cell
24. 24.🍯 Which of these is less dense than water? (a) a glass marble (b) a coin (c) a pebble (d) air
25. 25.🔍 Which is the odd one out? (a) honey (b) a cork (c) an ice cube (d) cooking oil
26. 26.🍯 Is honey denser or less dense than water? (a) less dense than water (b) denser than water
27. 27.📘 What does “dense” mean? (a) very hot (b) heavy for its size (c) very colourful (d) very thin
28. 28.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) water with food colour (b) honey (c) turmeric powder (d) cooking oil
29. 29.True or false: water with food colour is needed for the density tower. (a) True (b) False
30. 30.🍯 Is a coin denser or less dense than water? (a) denser than water (b) less dense than water
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: the order of the layers is kept the same. (a) False (b) True
32. 32.⚖️ 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) False (b) True
33. 33.🛟 Which rule keeps the density tower experiment safe? (a) throw the glass (b) taste each layer (c) do not lick the spoon (d) pour it on the floor
34. 34.True or false: a cork is denser than water. (a) False (b) True
35. 35.🧺 Which of these is not needed for the density tower? (a) a spoon (b) honey (c) turmeric powder (d) a tall clear glass
36. 36.⚖️ 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
37. 37.🧺 Do we need yeast for the density tower? (a) not needed (b) needed
38. 38.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) water with food colour (b) a spoon (c) cooking oil (d) yeast
39. 39.True or false: a magnet is needed for the density tower. (a) True (b) False
40. 40.True or false: a mirror is not needed for the density tower. (a) False (b) True

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