Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 922 · 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: very salty water is less dense than water. (a) True (b) False
2. 2.🧺 Which of these is not needed for the density tower? (a) cooking oil (b) a mirror (c) a tall clear glass (d) water with food colour
3. 3.🔮 Predict: you gently drop a coin into the tower. Where does it end up? (a) in the oil layer (b) on top of the oil (c) in the water layer (d) at the very bottom
4. 4.🍯 Is a glass marble denser or less dense than water? (a) less dense than water (b) denser than water
5. 5.🧺 Do we need a mirror for the density tower? (a) needed (b) not needed
6. 6.🔍 What do you see after pouring honey, water and oil into one glass? (a) one mixed colour (b) bubbles of gas (c) the glass gets hot (d) three separate layers
7. 7.🧺 Which of these is not needed for the density tower? (a) water with food colour (b) a spoon (c) a battery cell (d) honey
8. 8.🍯 Which of these is denser than water? (a) a ping-pong ball (b) air (c) honey (d) an ice cube
9. 9.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) water with food colour (b) cooking oil (c) honey (d) yeast
10. 10.🔍 Which is the odd one out? (a) a glass marble (b) a cork (c) a pebble (d) very salty water
11. 11.True or false: cooking oil is denser than water. (a) True (b) False
12. 12.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) honey (b) a tall clear glass (c) a balloon (d) a spoon
13. 13.🍯 Which of these is denser than water? (a) cooking oil (b) an ice cube (c) very salty water (d) a ping-pong ball
14. 14.🛟 Why should we wipe up spilled oil at once? (a) oil attracts magnets (b) oil turns into honey (c) oil makes it rain (d) spilled oil is slippery
15. 15.🧺 Do we need yeast for the density tower? (a) needed (b) not needed
16. 16.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) in the honey layer (b) on top of the oil (c) in the water layer (d) under the honey
17. 17.🍯 Is a cork denser or less dense than water? (a) denser than water (b) less dense than water
18. 18.True or false: turmeric powder is not needed for the density tower. (a) False (b) True
19. 19.🫗 Why does cooking oil float on top of water? (a) oil is hot (b) oil is heavier (c) oil is less dense (d) oil is sticky
20. 20.🧺 Do we need a balloon for the density tower? (a) not needed (b) needed
21. 21.🍯 Is a coin denser or less dense than water? (a) less dense than water (b) denser than water
22. 22.🧺 Which of these is needed for the density tower? (a) a battery cell (b) a mirror (c) a tall clear glass (d) turmeric powder
23. 23.🛟 Which rule keeps the density tower experiment safe? (a) throw the glass (b) do not lick the spoon (c) taste each layer (d) pour it on the floor
24. 24.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) cooking oil (b) a magnet (c) a tall clear glass (d) a spoon
25. 25.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a tall clear glass (b) honey (c) turmeric powder (d) a spoon
26. 26.⚖️ 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 order of pouring (c) how much of each liquid
27. 27.⚖️ 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) how much of each liquid (b) the order of the layers (c) the order of pouring (d) the same glass
28. 28.⚖️ 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
29. 29.True or false: a coin is less dense than water. (a) True (b) False
30. 30.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they mix for ever (b) they become solid (c) they separate again (d) they turn to honey
31. 31.🍯 Is cooking oil denser or less dense than water? (a) less dense than water (b) denser than water
32. 32.🍯 Which of these is less dense than water? (a) a glass marble (b) very salty water (c) honey (d) cooking oil
33. 33.True or false: water with food colour is 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 same glass is kept the same. (a) False (b) True
35. 35.🧺 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) cooking oil
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 the one thing we change. (a) False (b) True
37. 37.True or false: honey is needed for the density tower. (a) True (b) False
38. 38.⚖️ 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 glass (b) the order of the layers (c) the same three liquids (d) the order of pouring
39. 39.🧺 Which of these is not needed for the density tower? (a) cooking oil (b) a balloon (c) honey (d) a tall clear glass
40. 40.🍯 Which of these is denser than water? (a) a ping-pong ball (b) a cork (c) air (d) a coin

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