Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 650 · 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 should we wipe up spilled oil at once? (a) oil attracts magnets (b) spilled oil is slippery (c) oil turns into honey (d) oil makes it rain
2. 2.⚖️ 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 keep it the same (c) we measure it
3. 3.🧺 Do we need water with food colour for the density tower? (a) not needed (b) needed
4. 4.🧺 Do we need a battery cell for the density tower? (a) needed (b) not needed
5. 5.⚖️ 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 pouring (b) the order of the layers (c) how much of each liquid (d) the same three liquids
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 “the order of the layers”? (a) we keep it the same (b) we change it (c) we measure it
7. 7.🔍 Which is the odd one out? (a) honey (b) a pebble (c) a coin (d) cooking oil
8. 8.🫗 Why does cooking oil float on top of water? (a) oil is heavier (b) oil is hot (c) oil is less dense (d) oil is sticky
9. 9.🔍 What do you see after pouring honey, water and oil into one glass? (a) bubbles of gas (b) one mixed colour (c) three separate layers (d) the glass gets hot
10. 10.🧺 Which of these is needed for the density tower? (a) a mirror (b) honey (c) a balloon (d) yeast
11. 11.True or false: a pebble is less dense than water. (a) False (b) True
12. 12.🔍 Which is the odd one out? (a) a coin (b) honey (c) very salty water (d) an ice cube
13. 13.⚖️ 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 three liquids (c) the order of pouring
14. 14.True or false: a tall clear glass is not needed for the density tower. (a) False (b) True
15. 15.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) cooking oil (b) a battery cell (c) a spoon (d) honey
16. 16.🍯 Which of these is less dense than water? (a) a pebble (b) honey (c) cooking oil (d) a coin
17. 17.🛟 Which rule keeps the density tower experiment safe? (a) pour it on the floor (b) throw the glass (c) taste each layer (d) do not lick the spoon
18. 18.🧺 Which of these is needed for the density tower? (a) yeast (b) a mirror (c) water with food colour (d) a magnet
19. 19.True or false: an ice cube is less dense than water. (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? Which of these is kept the same? (a) the order of the layers (b) the same glass (c) the order of pouring
21. 21.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) water with food colour (b) a spoon (c) a tall clear glass (d) turmeric powder
22. 22.🧺 Which of these is not needed for the density tower? (a) a spoon (b) water with food colour (c) a mirror (d) honey
23. 23.🧺 Which of these is not needed for the density tower? (a) cooking oil (b) water with food colour (c) a tall clear glass (d) a balloon
24. 24.🧺 Which of these is needed for the density tower? (a) a magnet (b) yeast (c) a spoon (d) a battery cell
25. 25.🧺 Which of these is not needed for the density tower? (a) a spoon (b) turmeric powder (c) honey (d) cooking oil
26. 26.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a magnet (b) a tall clear glass (c) cooking oil (d) water with food colour
27. 27.🔍 Which is the odd one out? (a) honey (b) a coin (c) a ping-pong ball (d) very salty water
28. 28.🔍 Which is the odd one out? (a) a coin (b) very salty water (c) a glass marble (d) air
29. 29.🔍 Which layer is on top in the honey-water-oil tower? (a) honey (b) the spoon (c) cooking oil (d) coloured water
30. 30.True or false: a glass marble is less dense than water. (a) False (b) True
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 same glass is kept the same. (a) False (b) True
32. 32.🔮 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 turn to honey (d) they mix for ever
33. 33.🧺 Do we need honey for the density tower? (a) needed (b) not needed
34. 34.True or false: a coin is denser than water. (a) False (b) True
35. 35.🍯 Which of these is less dense than water? (a) air (b) honey (c) a pebble (d) very salty water
36. 36.🔍 Which is the odd one out? (a) an ice cube (b) cooking oil (c) a ping-pong ball (d) a pebble
37. 37.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) in the water layer (b) on top of the oil (c) under the honey (d) in the honey layer
38. 38.True or false: a spoon is needed for the density tower. (a) False (b) True
39. 39.True or false: cooking oil is not needed for the density tower. (a) False (b) True
40. 40.🧺 Do we need a tall clear glass for the density tower? (a) not needed (b) needed

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