Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 117 · 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) honey (c) yeast (d) water with food colour
2. 2.🛟 Which rule keeps the density tower experiment safe? (a) throw the glass (b) taste each layer (c) pour it on the floor (d) do not lick the spoon
3. 3.🧺 Which of these is needed for the density tower? (a) a balloon (b) a magnet (c) a battery cell (d) a tall clear glass
4. 4.🧺 Which of these is needed for the density tower? (a) a balloon (b) cooking oil (c) turmeric powder (d) yeast
5. 5.🍯 Is honey denser or less dense than water? (a) denser than water (b) less dense than water
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: how much of each liquid is kept the same. (a) True (b) False
7. 7.⚖️ 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
8. 8.⚖️ 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 same three liquids (b) the order of pouring (c) the order of the layers
9. 9.🫗 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
10. 10.True or false: cooking oil is denser than water. (a) True (b) False
11. 11.🍯 Is a pebble denser or less dense than water? (a) less dense than water (b) denser than water
12. 12.⚖️ 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 the one thing we change. (a) False (b) True
13. 13.🔮 Predict: you gently drop a coin into the tower. Where does it end up? (a) on top of the oil (b) in the water layer (c) in the oil layer (d) at the very bottom
14. 14.🧺 Do we need a tall clear glass for the density tower? (a) not needed (b) needed
15. 15.🧺 Which of these is needed for the density tower? (a) turmeric powder (b) water with food colour (c) a mirror (d) a balloon
16. 16.🧺 Do we need a battery cell for the density tower? (a) not needed (b) needed
17. 17.🍯 Which of these is denser than water? (a) air (b) a cork (c) a ping-pong ball (d) a coin
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 order of pouring is the one thing we change. (a) False (b) True
19. 19.🍯 Is cooking oil denser or less dense than water? (a) denser than water (b) less dense than water
20. 20.True or false: turmeric powder is needed for the density tower. (a) True (b) False
21. 21.True or false: very salty water is less dense than water. (a) False (b) True
22. 22.🛟 Why should we wipe up spilled oil at once? (a) oil attracts magnets (b) oil turns into honey (c) spilled oil is slippery (d) oil makes it rain
23. 23.⚖️ 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 three liquids is the one thing we change. (a) True (b) False
24. 24.🔍 Which is the odd one out? (a) a glass marble (b) a ping-pong ball (c) an ice cube (d) cooking oil
25. 25.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they become solid (b) they mix for ever (c) they separate again (d) they turn to honey
26. 26.🧺 Do we need honey for the density tower? (a) not needed (b) needed
27. 27.True or false: a magnet is needed for the density tower. (a) False (b) True
28. 28.🍯 Is a coin denser or less dense than water? (a) less dense than water (b) denser than water
29. 29.True or false: air is less dense than water. (a) False (b) True
30. 30.🔍 Which is the odd one out? (a) a coin (b) a cork (c) a ping-pong ball (d) cooking oil
31. 31.🧺 Which of these is needed for the density tower? (a) honey (b) a mirror (c) yeast (d) a balloon
32. 32.🔍 Which is the odd one out? (a) a glass marble (b) cooking oil (c) a pebble (d) a coin
33. 33.🍯 Which of these is denser than water? (a) a pebble (b) a cork (c) an ice cube (d) a ping-pong ball
34. 34.True or false: honey is not needed for the density tower. (a) False (b) True
35. 35.⚖️ 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
36. 36.🧺 Do we need a magnet for the density tower? (a) needed (b) not needed
37. 37.True or false: a balloon 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 the one thing we change? (a) the same three liquids (b) how much of each liquid (c) the same glass (d) the order of pouring
39. 39.🔍 What do you see after pouring honey, water and oil into one glass? (a) bubbles of gas (b) one mixed colour (c) three separate layers (d) the glass gets hot
40. 40.True or false: a tall clear glass is not needed for the density tower. (a) False (b) True

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