Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 373 · 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: air is denser than water. (a) True (b) False
2. 2.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they mix for ever (b) they separate again (c) they turn to honey (d) they become solid
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: how much of each liquid is the one thing we change. (a) True (b) False
4. 4.🧺 Which of these is needed for the density tower? (a) a mirror (b) yeast (c) a tall clear glass (d) a battery cell
5. 5.🔍 Which is the odd one out? (a) very salty water (b) honey (c) a coin (d) air
6. 6.🍯 Is cooking oil denser or less dense than water? (a) denser than water (b) less dense than water
7. 7.True or false: a coin is less dense than water. (a) True (b) False
8. 8.⚖️ 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) how much of each liquid
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: the same glass is kept the same. (a) False (b) True
10. 10.🔍 Which is the odd one out? (a) a glass marble (b) a cork (c) air (d) a ping-pong ball
11. 11.True or false: a cork is less dense than water. (a) True (b) False
12. 12.True or false: water with food colour is needed for the density tower. (a) True (b) False
13. 13.True or false: cooking oil is needed for the density tower. (a) True (b) False
14. 14.True or false: an ice cube is denser than water. (a) False (b) True
15. 15.🧺 Which of these is not needed for the density tower? (a) a balloon (b) a tall clear glass (c) honey (d) a spoon
16. 16.⚖️ 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
17. 17.🔍 What do you see after pouring honey, water and oil into one glass? (a) three separate layers (b) the glass gets hot (c) one mixed colour (d) bubbles of gas
18. 18.🛟 Which rule keeps the density tower experiment safe? (a) pour it on the floor (b) taste each layer (c) do not lick the spoon (d) throw the glass
19. 19.🧺 Do we need honey for the density tower? (a) needed (b) not needed
20. 20.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a spoon (b) a tall clear glass (c) yeast (d) cooking oil
21. 21.🧺 Do we need turmeric powder for the density tower? (a) needed (b) not needed
22. 22.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) cooking oil (b) a balloon (c) water with food colour (d) a spoon
23. 23.True or false: a magnet is not needed for the density tower. (a) True (b) False
24. 24.🍯 Is a ping-pong ball denser or less dense than water? (a) less dense than water (b) denser than water
25. 25.🛟 Why should we wipe up spilled oil at once? (a) oil turns into honey (b) oil makes it rain (c) oil attracts magnets (d) spilled oil is slippery
26. 26.True or false: a battery cell is needed for the density tower. (a) False (b) True
27. 27.True or false: turmeric powder is not needed for the density tower. (a) False (b) True
28. 28.🧺 Which of these is needed for the density tower? (a) turmeric powder (b) cooking oil (c) yeast (d) a magnet
29. 29.🔮 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
30. 30.True or false: a mirror is not needed for the density tower. (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? What do we do with “how much of each liquid”? (a) we keep it the same (b) we change it (c) we measure it
32. 32.True or false: a pebble is denser than water. (a) False (b) True
33. 33.🧺 Which of these is needed for the density tower? (a) honey (b) turmeric powder (c) a battery cell (d) a balloon
34. 34.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a spoon (b) honey (c) water with food colour (d) turmeric powder
35. 35.🍯 Which of these is less dense than water? (a) honey (b) a glass marble (c) a pebble (d) an ice cube
36. 36.🫗 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
37. 37.🍯 Is a pebble denser or less dense than water? (a) less dense than water (b) denser than water
38. 38.🧺 Do we need yeast for the density tower? (a) not needed (b) needed
39. 39.🧺 Do we need a balloon 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? True or false: how much of each liquid is kept the same. (a) True (b) False

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