Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 643 · 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.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a mirror (b) honey (c) cooking oil (d) water with food colour
2. 2.True or false: a balloon is needed for the density tower. (a) True (b) False
3. 3.🍯 Why does honey sink to the bottom of the glass? (a) it is yellow (b) it is the stickiest (c) it is the densest (d) it is the coldest
4. 4.🍯 Which of these is less dense than water? (a) a coin (b) very salty water (c) honey (d) air
5. 5.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a spoon (b) turmeric powder (c) honey (d) a tall clear glass
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 “how much of each liquid”? (a) we change it (b) we keep it the same (c) we measure it
7. 7.🛟 Why should we wipe up spilled oil at once? (a) oil makes it rain (b) spilled oil is slippery (c) oil turns into honey (d) oil attracts magnets
8. 8.True or false: cooking oil is less dense than water. (a) False (b) True
9. 9.🔍 Which is the odd one out? (a) air (b) a glass marble (c) a pebble (d) honey
10. 10.True or false: a spoon is not needed for the density tower. (a) False (b) True
11. 11.🍯 Which of these is denser than water? (a) cooking oil (b) air (c) a coin (d) an ice cube
12. 12.⚖️ 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
13. 13.🍯 Which of these is denser than water? (a) an ice cube (b) a ping-pong ball (c) cooking oil (d) a pebble
14. 14.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) on top of the oil (b) under the honey (c) in the water layer (d) in the honey layer
15. 15.True or false: a magnet is needed for the density tower. (a) True (b) False
16. 16.🍯 Is a ping-pong ball denser or less dense than water? (a) denser than water (b) less dense than water
17. 17.⚖️ 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) how much of each liquid (c) the same glass (d) the order of the layers
18. 18.🍯 Which of these is less dense than water? (a) a coin (b) a pebble (c) very salty water (d) a cork
19. 19.🧺 Which of these is needed for the density tower? (a) water with food colour (b) a battery cell (c) turmeric powder (d) a balloon
20. 20.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a spoon (b) water with food colour (c) a tall clear glass (d) a balloon
21. 21.🔮 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 turn to honey (d) they separate again
22. 22.🧺 Do we need water with food colour for the density tower? (a) not needed (b) needed
23. 23.🍯 Which of these is less dense than water? (a) a pebble (b) an ice cube (c) very salty water (d) honey
24. 24.🧺 Which of these is needed for the density tower? (a) a balloon (b) a tall clear glass (c) a battery cell (d) yeast
25. 25.⚖️ 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 pouring (c) the order of the layers
26. 26.🔍 Which is the odd one out? (a) a cork (b) a coin (c) air (d) a ping-pong ball
27. 27.🔮 Predict: you gently drop a coin into the tower. Where does it end up? (a) in the water layer (b) on top of the oil (c) in the oil layer (d) at the very bottom
28. 28.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a battery cell (b) water with food colour (c) a tall clear glass (d) a spoon
29. 29.🔍 Which is the odd one out? (a) a glass marble (b) very salty water (c) honey (d) a ping-pong ball
30. 30.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a tall clear glass (b) a spoon (c) a magnet (d) cooking oil
31. 31.🧺 Do we need cooking oil for the density tower? (a) needed (b) not needed
32. 32.True or false: a battery cell is not needed for the density tower. (a) True (b) False
33. 33.🫗 Why does cooking oil float on top of water? (a) oil is sticky (b) oil is hot (c) oil is heavier (d) oil is less dense
34. 34.🧺 Which of these is needed for the density tower? (a) cooking oil (b) a battery cell (c) yeast (d) turmeric powder
35. 35.🔍 Which layer is on top in the honey-water-oil tower? (a) coloured water (b) cooking oil (c) honey (d) the spoon
36. 36.True or false: a tall clear glass is needed for the density tower. (a) True (b) False
37. 37.⚖️ 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 order of the layers (b) the same glass (c) the same three liquids (d) the order of pouring
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 kept the same? (a) the order of the layers (b) the order of pouring (c) the same glass
39. 39.🔍 What do you see after pouring honey, water and oil into one glass? (a) one mixed colour (b) three separate layers (c) bubbles of gas (d) the glass gets hot
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 what we measure. (a) True (b) False

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