Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 426 · 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.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a tall clear glass (b) honey (c) a balloon (d) cooking oil
2. 2.🍯 Why does honey sink to the bottom of the glass? (a) it is the stickiest (b) it is the densest (c) it is yellow (d) it is the coldest
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 order of pouring is the one thing we change. (a) False (b) True
4. 4.📘 What does “dense” mean? (a) very colourful (b) very thin (c) heavy for its size (d) very hot
5. 5.True or false: cooking oil is denser than water. (a) True (b) False
6. 6.⚖️ 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 measure it (b) we keep it the same (c) we change it
7. 7.🔍 Which is the odd one out? (a) a glass marble (b) an ice cube (c) honey (d) a pebble
8. 8.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a tall clear glass (b) a battery cell (c) honey (d) a spoon
9. 9.⚖️ 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) False (b) True
10. 10.🫗 Why does cooking oil float on top of water? (a) oil is heavier (b) oil is less dense (c) oil is sticky (d) oil is hot
11. 11.True or false: a tall clear glass is needed for the density tower. (a) True (b) False
12. 12.⚖️ 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
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 three liquids”? (a) we measure it (b) we change it (c) we keep it the same
14. 14.🔍 What do you see after pouring honey, water and oil into one glass? (a) bubbles of gas (b) the glass gets hot (c) three separate layers (d) one mixed colour
15. 15.🔮 Predict: you gently drop a coin into the tower. Where does it end up? (a) in the water layer (b) at the very bottom (c) in the oil layer (d) on top of the oil
16. 16.🍯 Is a cork denser or less dense than water? (a) less dense than water (b) denser than water
17. 17.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) on top of the oil (b) in the honey layer (c) in the water layer (d) under the honey
18. 18.🍯 Which of these is less dense than water? (a) a pebble (b) an ice cube (c) a coin (d) honey
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 what we measure? (a) the same three liquids (b) the order of pouring (c) the same glass (d) the order of the layers
20. 20.⚖️ 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 same glass (d) the order of pouring
21. 21.True or false: a spoon is needed for the density tower. (a) True (b) False
22. 22.🧺 Which of these is not needed for the density tower? (a) water with food colour (b) a tall clear glass (c) cooking oil (d) a balloon
23. 23.🧺 Which of these is needed for the density tower? (a) a tall clear glass (b) a magnet (c) yeast (d) turmeric powder
24. 24.🧺 Do we need turmeric powder for the density tower? (a) needed (b) not needed
25. 25.🔍 Which is the odd one out? (a) very salty water (b) an ice cube (c) a cork (d) a ping-pong ball
26. 26.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) cooking oil (b) a spoon (c) honey (d) a mirror
27. 27.🍯 Which of these is less dense than water? (a) honey (b) a coin (c) a cork (d) very salty water
28. 28.True or false: a pebble is less dense than water. (a) False (b) True
29. 29.⚖️ 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 the one thing we change. (a) False (b) True
30. 30.🍯 Which of these is denser than water? (a) cooking oil (b) a coin (c) air (d) a cork
31. 31.🧺 Which of these is not needed for the density tower? (a) honey (b) water with food colour (c) cooking oil (d) a magnet
32. 32.True or false: very salty water is less dense than water. (a) False (b) True
33. 33.🍯 Is cooking oil denser or less dense than water? (a) denser than water (b) less dense than water
34. 34.🔍 Which is the odd one out? (a) a glass marble (b) air (c) a pebble (d) honey
35. 35.🛟 Why should we wipe up spilled oil at once? (a) oil attracts magnets (b) spilled oil is slippery (c) oil makes it rain (d) oil turns into honey
36. 36.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they separate again (b) they turn to honey (c) they mix for ever (d) they become solid
37. 37.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a spoon (b) turmeric powder (c) a tall clear glass (d) cooking oil
38. 38.🔍 Which layer is on top in the honey-water-oil tower? (a) honey (b) coloured water (c) the spoon (d) cooking oil
39. 39.🧺 Do we need yeast for the density tower? (a) needed (b) not needed
40. 40.⚖️ 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 change it (c) we keep it the same

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