Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 798 · 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 does cooking oil float on top of water? (a) oil is heavier (b) oil is less dense (c) oil is hot (d) oil is sticky
2. 2.True or false: cooking oil is needed for the density tower. (a) False (b) True
3. 3.🧺 Which of these is not needed for the density tower? (a) a balloon (b) honey (c) a tall clear glass (d) cooking oil
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 same glass (b) the same three liquids (c) the order of pouring (d) the order of the layers
5. 5.True or false: a pebble is denser than water. (a) False (b) True
6. 6.🧺 Do we need a magnet for the density tower? (a) not needed (b) needed
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 change it (b) we measure it (c) we keep it the same
8. 8.🧺 Do we need a balloon for the density tower? (a) not needed (b) needed
9. 9.⚖️ 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
10. 10.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a battery cell (b) honey (c) a tall clear glass (d) a spoon
11. 11.🔮 Predict: you gently drop a coin into the tower. Where does it end up? (a) on top of the oil (b) in the oil layer (c) in the water layer (d) at the very bottom
12. 12.🛟 Which rule keeps the density tower experiment safe? (a) taste each layer (b) do not lick the spoon (c) throw the glass (d) pour it on the floor
13. 13.🔮 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
14. 14.🧺 Do we need a spoon for the density tower? (a) not needed (b) needed
15. 15.🍯 Which of these is denser than water? (a) a ping-pong ball (b) air (c) a glass marble (d) an ice cube
16. 16.🍯 Which of these is less dense than water? (a) very salty water (b) a coin (c) cooking oil (d) a pebble
17. 17.True or false: yeast is not needed for the density tower. (a) True (b) False
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: how much of each liquid is what we measure. (a) True (b) False
19. 19.🍯 Is very salty water denser or less dense than water? (a) denser than water (b) less dense than water
20. 20.🧺 Which of these is needed for the density tower? (a) a battery cell (b) a tall clear glass (c) a balloon (d) yeast
21. 21.True or false: a magnet is needed for the density tower. (a) False (b) True
22. 22.⚖️ 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) how much of each liquid (c) the same glass (d) the order of pouring
23. 23.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a magnet (b) water with food colour (c) a tall clear glass (d) cooking oil
24. 24.🛟 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
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 “how much of each liquid”? (a) we keep it the same (b) we measure it (c) we change it
26. 26.🔍 Which is the odd one out? (a) cooking oil (b) a pebble (c) an ice cube (d) a ping-pong ball
27. 27.True or false: a cork is less dense than water. (a) True (b) False
28. 28.⚖️ 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) True (b) False
29. 29.🔍 Which is the odd one out? (a) honey (b) air (c) cooking oil (d) a cork
30. 30.True or false: air is less dense than water. (a) False (b) True
31. 31.🔍 Which is the odd one out? (a) a glass marble (b) very salty water (c) an ice cube (d) a coin
32. 32.🔍 Which is the odd one out? (a) a coin (b) a pebble (c) a glass marble (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? What do we do with “the same glass”? (a) we measure it (b) we keep it the same (c) we change it
34. 34.True or false: very salty water is denser than water. (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? True or false: the same three liquids is the one thing we change. (a) False (b) True
36. 36.🔍 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
37. 37.True or false: honey 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? What do we do with “the order of the layers”? (a) we keep it the same (b) we measure it (c) we change it
39. 39.🍯 Which of these is denser than water? (a) an ice cube (b) a cork (c) cooking oil (d) honey
40. 40.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) cooking oil (b) a tall clear glass (c) turmeric powder (d) water with food colour

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