Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 454 · 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 turns into honey (b) oil attracts magnets (c) oil makes it rain (d) spilled oil is slippery
2. 2.True or false: air is denser than water. (a) True (b) False
3. 3.⚖️ 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) how much of each liquid (b) the order of the layers (c) the order of pouring
4. 4.⚖️ 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
5. 5.True or false: a spoon is needed for the density tower. (a) False (b) True
6. 6.⚖️ 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
7. 7.🧺 Do we need a battery cell for the density tower? (a) needed (b) not needed
8. 8.True or false: yeast is needed for the density tower. (a) False (b) True
9. 9.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) in the water layer (b) in the honey layer (c) under the honey (d) on top of the oil
10. 10.⚖️ 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) how much of each liquid (b) the order of pouring (c) the order of the layers (d) the same glass
11. 11.🧺 Do we need honey for the density tower? (a) not needed (b) needed
12. 12.🧺 Which of these is not needed for the density tower? (a) a tall clear glass (b) a spoon (c) honey (d) yeast
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 “how much of each liquid”? (a) we keep it the same (b) we change it (c) we measure it
14. 14.🍯 Why does honey sink to the bottom of the glass? (a) it is yellow (b) it is the stickiest (c) it is the coldest (d) it is the densest
15. 15.🍯 Which of these is less dense than water? (a) a glass marble (b) a coin (c) cooking oil (d) very salty water
16. 16.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) water with food colour (b) cooking oil (c) a spoon (d) a balloon
17. 17.🍯 Which of these is less dense than water? (a) a pebble (b) air (c) very salty water (d) a glass marble
18. 18.🍯 Is cooking oil denser or less dense than water? (a) denser than water (b) less dense than water
19. 19.🍯 Is a glass marble denser or less dense than water? (a) denser than water (b) less dense than water
20. 20.True or false: a coin is less dense than water. (a) True (b) False
21. 21.True or false: cooking oil is denser than water. (a) False (b) True
22. 22.📘 What does “dense” mean? (a) very thin (b) very hot (c) very colourful (d) heavy for its size
23. 23.True or false: a cork is less dense than water. (a) False (b) True
24. 24.🧺 Which of these is needed for the density tower? (a) a balloon (b) a mirror (c) a spoon (d) a battery cell
25. 25.⚖️ 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 measure it (c) we keep it the same
26. 26.True or false: turmeric powder is not needed for the density tower. (a) False (b) True
27. 27.True or false: a tall clear glass is not needed for the density tower. (a) True (b) False
28. 28.🫗 Why does cooking oil float on top of water? (a) oil is sticky (b) oil is hot (c) oil is less dense (d) oil is heavier
29. 29.⚖️ 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) the same glass
30. 30.🧺 Do we need turmeric powder for the density tower? (a) needed (b) not needed
31. 31.True or false: a ping-pong ball is less dense than water. (a) False (b) True
32. 32.True or false: cooking oil is less dense than water. (a) True (b) False
33. 33.🔍 Which is the odd one out? (a) an ice cube (b) honey (c) a coin (d) very salty water
34. 34.True or false: a magnet is not needed for the density tower. (a) True (b) False
35. 35.🔍 Which is the odd one out? (a) air (b) cooking oil (c) honey (d) an ice cube
36. 36.🍯 Which of these is denser than water? (a) a ping-pong ball (b) cooking oil (c) air (d) a coin
37. 37.🧺 Which of these is not needed for the density tower? (a) a spoon (b) a magnet (c) a tall clear glass (d) cooking oil
38. 38.🍯 Is very salty water denser or less dense than water? (a) denser than water (b) less dense than water
39. 39.🍯 Which of these is denser than water? (a) cooking oil (b) honey (c) an ice cube (d) a ping-pong ball
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 same glass”? (a) we measure it (b) we keep it the same (c) we change it

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