Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 615 · 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 tall clear glass (b) a spoon (c) a magnet (d) water with food colour
2. 2.True or false: a mirror is needed for the density tower. (a) True (b) False
3. 3.True or false: very salty water is denser than water. (a) True (b) False
4. 4.⚖️ 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 kept the same. (a) True (b) False
5. 5.🔍 Which is the odd one out? (a) a cork (b) cooking oil (c) an ice cube (d) a coin
6. 6.🍯 Why does honey sink to the bottom of the glass? (a) it is the densest (b) it is the stickiest (c) it is yellow (d) it is the coldest
7. 7.🔮 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) at the very bottom (d) in the water layer
8. 8.🧺 Do we need a tall clear glass for the density tower? (a) not needed (b) needed
9. 9.True or false: a mirror is not needed for the density tower. (a) False (b) True
10. 10.🧺 Do we need a magnet for the density tower? (a) not needed (b) needed
11. 11.⚖️ 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
12. 12.True or false: a magnet is not needed for the density tower. (a) True (b) False
13. 13.🍯 Is very salty water denser or less dense than water? (a) denser than water (b) less dense than water
14. 14.🧺 Which of these is needed for the density tower? (a) turmeric powder (b) a balloon (c) honey (d) yeast
15. 15.⚖️ 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 measure it (b) we change it (c) we keep it the same
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 same glass”? (a) we change it (b) we measure it (c) we keep it the same
17. 17.📘 What does “dense” mean? (a) heavy for its size (b) very hot (c) very colourful (d) very thin
18. 18.True or false: a tall clear glass is needed for the density tower. (a) False (b) True
19. 19.🔍 What do you see after pouring honey, water and oil into one glass? (a) bubbles of gas (b) the glass gets hot (c) one mixed colour (d) three separate layers
20. 20.⚖️ 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 three liquids”? (a) we measure it (b) we keep it the same (c) we change it
21. 21.True or false: yeast is not needed for the density tower. (a) True (b) False
22. 22.🫗 Why does cooking oil float on top of water? (a) oil is hot (b) oil is sticky (c) oil is heavier (d) oil is less dense
23. 23.🔮 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
24. 24.🍯 Which of these is less dense than water? (a) an ice cube (b) very salty water (c) a pebble (d) honey
25. 25.🧺 Do we need cooking oil for the density tower? (a) not needed (b) needed
26. 26.🍯 Is a coin denser or less dense than water? (a) less dense than water (b) denser than water
27. 27.🍯 Which of these is denser than water? (a) cooking oil (b) a glass marble (c) a ping-pong ball (d) a cork
28. 28.🧺 Do we need turmeric powder for the density tower? (a) not needed (b) needed
29. 29.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a tall clear glass (b) cooking oil (c) honey (d) yeast
30. 30.🛟 Why should we wipe up spilled oil at once? (a) oil makes it rain (b) oil turns into honey (c) spilled oil is slippery (d) oil attracts magnets
31. 31.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) cooking oil (b) a battery cell (c) a spoon (d) honey
32. 32.🧺 Which of these is not needed for the density tower? (a) honey (b) water with food colour (c) a magnet (d) cooking oil
33. 33.⚖️ 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 order of pouring (c) how much of each liquid (d) the same glass
34. 34.⚖️ 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 pouring (b) the same three liquids (c) the order of the layers
35. 35.🧺 Which of these is needed for the density tower? (a) yeast (b) a battery cell (c) turmeric powder (d) a tall clear glass
36. 36.True or false: air is denser than water. (a) True (b) False
37. 37.🧺 Do we need honey for the density tower? (a) needed (b) not needed
38. 38.🔍 Which is the odd one out? (a) cooking oil (b) a glass marble (c) a cork (d) a ping-pong ball
39. 39.⚖️ 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 keep it the same (b) we measure it (c) we change it
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 “how much of each liquid”? (a) we keep it the same (b) we change it (c) we measure it

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