Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 300 · 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.🧺 Do we need a magnet for the density tower? (a) not needed (b) needed
2. 2.🔍 Which is the odd one out? (a) very salty water (b) a cork (c) cooking oil (d) an ice cube
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 the one thing we change. (a) True (b) False
4. 4.🧺 Which of these is not needed for the density tower? (a) a mirror (b) a tall clear glass (c) water with food colour (d) honey
5. 5.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they separate again (b) they turn to honey (c) they become solid (d) they mix for ever
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: the same glass is the one thing we change. (a) False (b) True
7. 7.🍯 Which of these is denser than water? (a) cooking oil (b) a glass marble (c) a cork (d) a ping-pong ball
8. 8.⚖️ 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 change it (c) we measure it
9. 9.🛟 Which rule keeps the density tower experiment safe? (a) pour it on the floor (b) throw the glass (c) do not lick the spoon (d) taste each layer
10. 10.True or false: a cork is denser than water. (a) False (b) True
11. 11.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) honey (b) a tall clear glass (c) a mirror (d) a spoon
12. 12.🛟 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
13. 13.True or false: a battery cell is needed for the density tower. (a) False (b) True
14. 14.🍯 Which of these is denser than water? (a) a coin (b) an ice cube (c) a cork (d) a ping-pong ball
15. 15.🧺 Do we need a tall clear glass for the density tower? (a) not needed (b) needed
16. 16.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) water with food colour (b) a tall clear glass (c) a balloon (d) a spoon
17. 17.🔍 Which is the odd one out? (a) honey (b) a pebble (c) air (d) very salty water
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 what we measure. (a) True (b) False
19. 19.⚖️ 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 order of pouring (c) the same glass (d) the same three liquids
20. 20.True or false: turmeric powder is not needed for the density tower. (a) True (b) False
21. 21.🔍 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
22. 22.True or false: a coin is denser than water. (a) True (b) False
23. 23.⚖️ 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 keep it the same (c) we measure it
24. 24.🍯 Which of these is denser than water? (a) cooking oil (b) a ping-pong ball (c) very salty water (d) air
25. 25.True or false: a tall clear glass is not needed for the density tower. (a) False (b) True
26. 26.⚖️ 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
27. 27.⚖️ 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 change it (b) we keep it the same (c) we measure it
28. 28.True or false: very salty water is less dense than water. (a) False (b) True
29. 29.⚖️ 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
30. 30.🫗 Why does cooking oil float on top of water? (a) oil is less dense (b) oil is heavier (c) oil is hot (d) oil is sticky
31. 31.True or false: honey is not needed for the density tower. (a) True (b) False
32. 32.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a magnet (b) a spoon (c) a tall clear glass (d) water with food colour
33. 33.🔮 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) at the very bottom (d) in the oil layer
34. 34.🧺 Which of these is not needed for the density tower? (a) a tall clear glass (b) water with food colour (c) a spoon (d) a magnet
35. 35.🔍 Which is the odd one out? (a) very salty water (b) honey (c) an ice cube (d) a coin
36. 36.🧺 Which of these is needed for the density tower? (a) a magnet (b) turmeric powder (c) a battery cell (d) cooking oil
37. 37.🍯 Which of these is denser than water? (a) a pebble (b) an ice cube (c) a cork (d) air
38. 38.🧺 Do we need water with food colour for the density tower? (a) needed (b) not needed
39. 39.🍯 Why does honey sink to the bottom of the glass? (a) it is the coldest (b) it is the densest (c) it is the stickiest (d) it is yellow
40. 40.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) turmeric powder (b) water with food colour (c) a spoon (d) a tall clear glass

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