Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 794 · 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.⚖️ 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 change it (b) we measure it (c) we keep it the same
2. 2.🛟 Which rule keeps the density tower experiment safe? (a) taste each layer (b) pour it on the floor (c) throw the glass (d) do not lick the spoon
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 the layers is kept the same. (a) False (b) True
4. 4.🍯 Which of these is denser than water? (a) very salty water (b) air (c) cooking oil (d) a ping-pong ball
5. 5.🛟 Why should we wipe up spilled oil at once? (a) oil makes it rain (b) oil attracts magnets (c) spilled oil is slippery (d) oil turns into honey
6. 6.⚖️ 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
7. 7.🧺 Which of these is needed for the density tower? (a) a mirror (b) water with food colour (c) turmeric powder (d) yeast
8. 8.🔮 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) under the honey (d) in the water layer
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 order of pouring is the one thing we change. (a) False (b) True
10. 10.🧺 Which of these is needed for the density tower? (a) a battery cell (b) honey (c) a magnet (d) a mirror
11. 11.🍯 Which of these is denser than water? (a) air (b) a pebble (c) a ping-pong ball (d) cooking oil
12. 12.🔍 Which layer is on top in the honey-water-oil tower? (a) cooking oil (b) the spoon (c) honey (d) coloured water
13. 13.🔮 Predict: you gently drop a coin into the tower. Where does it end up? (a) in the water layer (b) in the oil layer (c) at the very bottom (d) on top of the oil
14. 14.True or false: air is less dense than water. (a) True (b) False
15. 15.🍯 Which of these is less dense than water? (a) an ice cube (b) honey (c) a coin (d) very salty water
16. 16.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) cooking oil (b) turmeric powder (c) a tall clear glass (d) water with food colour
17. 17.🔍 What do you see after pouring honey, water and oil into one glass? (a) bubbles of gas (b) one mixed colour (c) the glass gets hot (d) three separate layers
18. 18.⚖️ 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
19. 19.True or false: cooking oil is less dense than water. (a) False (b) True
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 what we measure? (a) the same three liquids (b) the order of pouring (c) how much of each liquid (d) the order of the layers
21. 21.🧺 Do we need yeast for the density tower? (a) not needed (b) needed
22. 22.🍯 Is air denser or less dense than water? (a) denser than water (b) less dense than water
23. 23.🧺 Do we need a tall clear glass for the density tower? (a) needed (b) not needed
24. 24.🍯 Why does honey sink to the bottom of the glass? (a) it is yellow (b) it is the densest (c) it is the coldest (d) it is the stickiest
25. 25.True or false: a tall clear glass is needed for the density tower. (a) True (b) False
26. 26.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) honey (b) a mirror (c) cooking oil (d) a spoon
27. 27.🔮 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
28. 28.⚖️ 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 three liquids (b) the same glass (c) how much of each liquid (d) the order of pouring
29. 29.True or false: a mirror is needed for the density tower. (a) False (b) True
30. 30.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) yeast (b) water with food colour (c) a tall clear glass (d) honey
31. 31.True or false: a battery cell is not needed for the density tower. (a) False (b) True
32. 32.🍯 Is cooking oil denser or less dense than water? (a) denser than water (b) less dense than water
33. 33.🔍 Which is the odd one out? (a) a pebble (b) a ping-pong ball (c) honey (d) a glass marble
34. 34.⚖️ 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 change it (b) we measure it (c) we keep it the same
35. 35.True or false: a cork is denser than water. (a) True (b) False
36. 36.📘 What does “dense” mean? (a) heavy for its size (b) very hot (c) very colourful (d) very thin
37. 37.🧺 Which of these is needed for the density tower? (a) yeast (b) a magnet (c) a mirror (d) cooking oil
38. 38.🫗 Why does cooking oil float on top of water? (a) oil is less dense (b) oil is sticky (c) oil is hot (d) oil is heavier
39. 39.🍯 Is a cork denser or less dense than water? (a) denser than water (b) less dense than water
40. 40.🧺 Do we need a magnet for the density tower? (a) not needed (b) needed

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