Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 541 · 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.True or false: cooking oil is less dense than water. (a) True (b) False
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 glass (b) the order of pouring (c) the same three liquids (d) the order of the layers
3. 3.⚖️ 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 keep it the same (b) we measure it (c) we change it
4. 4.🔍 Which is the odd one out? (a) honey (b) a pebble (c) very salty water (d) a cork
5. 5.🧺 Which of these is not needed for the density tower? (a) water with food colour (b) a battery cell (c) a tall clear glass (d) honey
6. 6.🛟 Which rule keeps the density tower experiment safe? (a) throw the glass (b) do not lick the spoon (c) pour it on the floor (d) taste each layer
7. 7.⚖️ 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 measure it (c) we keep it the same
8. 8.🍯 Which of these is denser than water? (a) a cork (b) air (c) a ping-pong ball (d) a coin
9. 9.🔍 Which is the odd one out? (a) a pebble (b) cooking oil (c) honey (d) very salty water
10. 10.🍯 Which of these is denser than water? (a) a cork (b) a ping-pong ball (c) a glass marble (d) air
11. 11.True or false: a magnet is needed for the density tower. (a) True (b) False
12. 12.🍯 Is very salty water denser or less dense than water? (a) denser than water (b) less dense than water
13. 13.🧺 Do we need water with food colour for the density tower? (a) needed (b) not needed
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.True or false: honey is needed for the density tower. (a) False (b) True
16. 16.True or false: cooking oil is denser than water. (a) True (b) False
17. 17.⚖️ 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) how much of each liquid (c) the order of pouring (d) the order of the layers
18. 18.🧺 Do we need a magnet for the density tower? (a) needed (b) not needed
19. 19.⚖️ 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 what we measure. (a) True (b) False
20. 20.⚖️ 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
21. 21.⚖️ 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 same glass (c) the order of the layers
22. 22.🧺 Which of these is not needed for the density tower? (a) a balloon (b) a tall clear glass (c) water with food colour (d) a spoon
23. 23.🛟 Why should we wipe up spilled oil at once? (a) oil turns into honey (b) spilled oil is slippery (c) oil makes it rain (d) oil attracts magnets
24. 24.True or false: a glass marble is denser than water. (a) False (b) True
25. 25.🫗 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
26. 26.🧺 Do we need honey for the density tower? (a) not needed (b) needed
27. 27.🍯 Which of these is less dense than water? (a) cooking oil (b) a glass marble (c) honey (d) a pebble
28. 28.True or false: an ice cube is less dense than water. (a) False (b) True
29. 29.🧺 Do we need cooking oil for the density tower? (a) not needed (b) needed
30. 30.⚖️ 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) True (b) False
31. 31.🔮 Predict: you gently drop a coin into the tower. Where does it end up? (a) on top of the oil (b) in the water layer (c) in the oil layer (d) at the very bottom
32. 32.🔍 Which is the odd one out? (a) honey (b) air (c) cooking oil (d) a cork
33. 33.🍯 Is a pebble denser or less dense than water? (a) denser than water (b) less dense than water
34. 34.🧺 Which of these is needed for the density tower? (a) a magnet (b) honey (c) a mirror (d) yeast
35. 35.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a tall clear glass (b) a battery cell (c) a spoon (d) honey
36. 36.🍯 Which of these is less dense than water? (a) a glass marble (b) a coin (c) a cork (d) honey
37. 37.⚖️ 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
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 same three liquids is the one thing we change. (a) False (b) True
39. 39.🍯 Why does honey sink to the bottom of the glass? (a) it is the densest (b) it is the stickiest (c) it is yellow (d) it is the coldest
40. 40.True or false: a balloon is needed for the density tower. (a) True (b) False

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