Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 378 · 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? Which of these is what we measure? (a) the order of the layers (b) how much of each liquid (c) the order of pouring (d) the same glass
2. 2.🫗 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
3. 3.⚖️ 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 the one thing we change. (a) False (b) True
4. 4.⚖️ 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 change it (c) we measure it
5. 5.🔍 Which is the odd one out? (a) an ice cube (b) a cork (c) a pebble (d) cooking oil
6. 6.🔮 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 separate again (d) they become solid
7. 7.🔍 Which is the odd one out? (a) very salty water (b) air (c) a coin (d) a pebble
8. 8.⚖️ 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
9. 9.🔮 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 water layer (d) in the oil layer
10. 10.🍯 Is a glass marble denser or less dense than water? (a) denser than water (b) less dense than water
11. 11.🛟 Which rule keeps the density tower experiment safe? (a) do not lick the spoon (b) throw the glass (c) pour it on the floor (d) taste each layer
12. 12.🧺 Which of these is needed for the density tower? (a) a balloon (b) a mirror (c) honey (d) turmeric powder
13. 13.True or false: honey is denser than water. (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? What do we do with “the same glass”? (a) we change it (b) we keep it the same (c) we measure it
15. 15.🔍 What do you see after pouring honey, water and oil into one glass? (a) the glass gets hot (b) bubbles of gas (c) one mixed colour (d) three separate layers
16. 16.True or false: cooking oil is not needed for the density tower. (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? True or false: the order of the layers is what we measure. (a) False (b) True
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 “how much of each liquid”? (a) we change it (b) we keep it the same (c) we measure it
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 the one thing we change? (a) the order of the layers (b) the same three liquids (c) the order of pouring (d) the same glass
20. 20.True or false: a mirror is needed for the density tower. (a) True (b) False
21. 21.🧺 Which of these is needed for the density tower? (a) a balloon (b) a tall clear glass (c) yeast (d) turmeric powder
22. 22.🍯 Why does honey sink to the bottom of the glass? (a) it is the stickiest (b) it is the coldest (c) it is yellow (d) it is the densest
23. 23.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a tall clear glass (b) water with food colour (c) cooking oil (d) yeast
24. 24.True or false: a glass marble is denser than water. (a) True (b) False
25. 25.🧺 Do we need cooking oil for the density tower? (a) needed (b) not needed
26. 26.🧺 Do we need a balloon for the density tower? (a) needed (b) not needed
27. 27.🧺 Do we need a mirror for the density tower? (a) needed (b) not needed
28. 28.🛟 Why should we wipe up spilled oil at once? (a) oil makes it rain (b) oil attracts magnets (c) spilled oil is slippery (d) oil turns into honey
29. 29.🔍 Which is the odd one out? (a) honey (b) a glass marble (c) a pebble (d) cooking oil
30. 30.True or false: a battery cell is not needed for the density tower. (a) True (b) False
31. 31.📘 What does “dense” mean? (a) very thin (b) very hot (c) heavy for its size (d) very colourful
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 same three liquids”? (a) we change it (b) we measure it (c) we keep it the same
33. 33.True or false: a tall clear glass is needed for the density tower. (a) False (b) True
34. 34.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) cooking oil (b) a tall clear glass (c) a mirror (d) a spoon
35. 35.🍯 Is an ice cube denser or less dense than water? (a) denser than water (b) less dense than water
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.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) under the honey (b) in the water layer (c) on top of the oil (d) in the honey layer
38. 38.🔍 Which is the odd one out? (a) honey (b) very salty water (c) a glass marble (d) an ice cube
39. 39.🧺 Which of these is needed for the density tower? (a) a battery cell (b) yeast (c) a magnet (d) water with food colour
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 same three liquids is kept the same. (a) False (b) True

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