Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 473 · 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.🔍 What do you see after pouring honey, water and oil into one glass? (a) bubbles of gas (b) one mixed colour (c) the glass gets hot (d) three separate layers
2. 2.True or false: a ping-pong ball is less dense than water. (a) False (b) True
3. 3.True or false: honey is less dense than water. (a) False (b) True
4. 4.🧺 Which of these is needed for the density tower? (a) a magnet (b) turmeric powder (c) a battery cell (d) water with food colour
5. 5.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) honey (b) a tall clear glass (c) cooking oil (d) a magnet
6. 6.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) honey (b) cooking oil (c) a spoon (d) turmeric powder
7. 7.🍯 Which of these is less dense than water? (a) a glass marble (b) very salty water (c) a cork (d) a pebble
8. 8.🔍 Which is the odd one out? (a) very salty water (b) a glass marble (c) a pebble (d) air
9. 9.🍯 Why does honey sink to the bottom of the glass? (a) it is the stickiest (b) it is yellow (c) it is the densest (d) it is the coldest
10. 10.⚖️ 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 three liquids (b) the same glass (c) the order of the layers (d) the order of pouring
11. 11.🔍 Which is the odd one out? (a) a glass marble (b) a cork (c) a pebble (d) honey
12. 12.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a tall clear glass (b) a mirror (c) cooking oil (d) a spoon
13. 13.⚖️ 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 keep it the same (b) we change it (c) we measure it
14. 14.⚖️ 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 kept the same. (a) True (b) False
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 the layers”? (a) we change it (b) we keep it the same (c) we measure it
16. 16.🍯 Which of these is denser than water? (a) air (b) a ping-pong ball (c) cooking oil (d) a pebble
17. 17.True or false: water with food colour is not needed for the density tower. (a) True (b) False
18. 18.🍯 Is air denser or less dense than water? (a) denser than water (b) less dense than water
19. 19.🍯 Which of these is denser than water? (a) a ping-pong ball (b) a cork (c) cooking oil (d) honey
20. 20.🍯 Is a pebble denser or less dense than water? (a) less dense than water (b) denser than water
21. 21.⚖️ 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 the one thing we change. (a) False (b) True
22. 22.🔍 Which is the odd one out? (a) air (b) very salty water (c) an ice cube (d) a ping-pong ball
23. 23.True or false: air is less dense than water. (a) False (b) True
24. 24.🛟 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
25. 25.🔮 Predict: you gently drop a coin into the tower. Where does it end up? (a) in the water layer (b) at the very bottom (c) on top of the oil (d) in the oil layer
26. 26.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) water with food colour (b) cooking oil (c) a battery cell (d) a spoon
27. 27.⚖️ 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 kept the same. (a) True (b) False
28. 28.🧺 Which of these is not needed for the density tower? (a) cooking oil (b) water with food colour (c) a balloon (d) a tall clear glass
29. 29.🧺 Which of these is needed for the density tower? (a) yeast (b) turmeric powder (c) a tall clear glass (d) a magnet
30. 30.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a spoon (b) a balloon (c) cooking oil (d) a tall clear glass
31. 31.🛟 Which rule keeps the density tower experiment safe? (a) do not lick the spoon (b) taste each layer (c) throw the glass (d) pour it on the floor
32. 32.🫗 Why does cooking oil float on top of water? (a) oil is less dense (b) oil is heavier (c) oil is sticky (d) oil is hot
33. 33.🧺 Do we need a battery cell for the density tower? (a) not needed (b) needed
34. 34.🧺 Do we need a tall clear glass for the density tower? (a) needed (b) not needed
35. 35.🧺 Which of these is not needed for the density tower? (a) a mirror (b) water with food colour (c) a tall clear glass (d) a spoon
36. 36.True or false: cooking oil is less dense than water. (a) False (b) True
37. 37.True or false: a coin is less dense than water. (a) False (b) True
38. 38.🧺 Do we need honey for the density tower? (a) not needed (b) needed
39. 39.⚖️ 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
40. 40.True or false: cooking oil is not needed for the density tower. (a) False (b) True

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