Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 509 · 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.🍯 Why does honey sink to the bottom of the glass? (a) it is yellow (b) it is the coldest (c) it is the densest (d) it is the stickiest
2. 2.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they become solid (b) they separate again (c) they mix for ever (d) they turn to honey
3. 3.True or false: yeast is needed for the density tower. (a) False (b) True
4. 4.🛟 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
5. 5.⚖️ 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) False (b) True
6. 6.⚖️ 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 the layers (b) the same glass (c) the order of pouring
7. 7.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) in the water layer (b) under the honey (c) in the honey layer (d) on top of the oil
8. 8.True or false: air is denser than water. (a) False (b) True
9. 9.🧺 Which of these is not needed for the density tower? (a) a mirror (b) honey (c) a tall clear glass (d) a spoon
10. 10.True or false: a coin is less dense than water. (a) False (b) True
11. 11.🛟 Why should we wipe up spilled oil at once? (a) oil attracts magnets (b) oil makes it rain (c) spilled oil is slippery (d) oil turns into honey
12. 12.⚖️ 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) how much of each liquid (c) the same glass (d) the order of pouring
13. 13.⚖️ 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
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 the one thing we change? (a) the same glass (b) the same three liquids (c) the order of pouring (d) the order of the layers
15. 15.🍯 Which of these is less dense than water? (a) a pebble (b) honey (c) very salty water (d) air
16. 16.🧺 Do we need honey for the density tower? (a) needed (b) not needed
17. 17.🍯 Is a pebble denser or less dense than water? (a) less dense than water (b) denser than water
18. 18.🧺 Do we need a mirror 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? What do we do with “how much of each liquid”? (a) we keep it the same (b) we measure it (c) we change it
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 order of the layers is kept the same. (a) True (b) False
21. 21.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a spoon (b) water with food colour (c) turmeric powder (d) honey
22. 22.🍯 Is air denser or less dense than water? (a) less dense than water (b) denser than water
23. 23.🔍 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
24. 24.🔮 Predict: you gently drop a coin into the tower. Where does it end up? (a) in the water layer (b) on top of the oil (c) in the oil layer (d) at the very bottom
25. 25.🔍 Which is the odd one out? (a) honey (b) air (c) a coin (d) a glass marble
26. 26.True or false: a ping-pong ball is less dense than water. (a) False (b) True
27. 27.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) cooking oil (b) water with food colour (c) a spoon (d) a battery cell
28. 28.🫗 Why does cooking oil float on top of water? (a) oil is less dense (b) oil is sticky (c) oil is heavier (d) oil is hot
29. 29.🔍 Which is the odd one out? (a) air (b) cooking oil (c) a ping-pong ball (d) a coin
30. 30.🧺 Do we need a battery cell for the density tower? (a) not needed (b) needed
31. 31.⚖️ 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 keep it the same (c) we change it
32. 32.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) honey (b) a tall clear glass (c) a spoon (d) yeast
33. 33.True or false: a spoon is not needed for the density tower. (a) False (b) True
34. 34.⚖️ 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) False (b) True
35. 35.True or false: a mirror is needed for the density tower. (a) False (b) True
36. 36.🧺 Do we need water with food colour for the density tower? (a) not needed (b) needed
37. 37.🧺 Which of these is needed for the density tower? (a) a mirror (b) a battery cell (c) a balloon (d) a tall clear glass
38. 38.🍯 Is an ice cube denser or less dense than water? (a) less dense than water (b) denser than water
39. 39.True or false: an ice cube is less dense than water. (a) True (b) False
40. 40.🍯 Is a ping-pong ball denser or less dense than water? (a) less dense than water (b) denser than water

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