Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 179 · 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.🧺 Which of these is needed for the density tower? (a) a mirror (b) a balloon (c) water with food colour (d) yeast
2. 2.🍯 Which of these is denser than water? (a) a coin (b) air (c) a cork (d) a ping-pong ball
3. 3.🧺 Which of these is not needed for the density tower? (a) cooking oil (b) turmeric powder (c) honey (d) a tall clear glass
4. 4.⚖️ 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 change it (c) we keep it the same
5. 5.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a spoon (b) yeast (c) a tall clear glass (d) cooking oil
6. 6.🛟 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
7. 7.⚖️ 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 same glass (c) the order of the layers (d) the order of pouring
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 the layers”? (a) we measure it (b) we keep it the same (c) we change it
9. 9.⚖️ 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 change it (b) we keep it the same (c) we measure it
10. 10.🫗 Why does cooking oil float on top of water? (a) oil is sticky (b) oil is heavier (c) oil is hot (d) oil is less dense
11. 11.🧺 Do we need turmeric powder for the density tower? (a) needed (b) not needed
12. 12.🔍 Which is the odd one out? (a) a pebble (b) air (c) honey (d) a glass marble
13. 13.🍯 Is a ping-pong ball denser or less dense than water? (a) denser than water (b) less dense than water
14. 14.🧺 Which of these is not needed for the density tower? (a) cooking oil (b) a balloon (c) a tall clear glass (d) water with food colour
15. 15.🧺 Do we need a spoon for the density tower? (a) needed (b) not needed
16. 16.True or false: a ping-pong ball is less dense than water. (a) True (b) False
17. 17.🧺 Which of these is needed for the density tower? (a) a battery cell (b) a spoon (c) yeast (d) a mirror
18. 18.True or false: water with food colour is needed for the density tower. (a) False (b) True
19. 19.True or false: a balloon is not needed for the density tower. (a) False (b) True
20. 20.🔍 Which is the odd one out? (a) air (b) an ice cube (c) a pebble (d) cooking oil
21. 21.⚖️ 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
22. 22.🧺 Do we need water with food colour for the density tower? (a) not needed (b) needed
23. 23.⚖️ 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) how much of each liquid (b) the order of the layers (c) the same three liquids (d) the order of pouring
24. 24.⚖️ 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
25. 25.🍯 Is a pebble denser or less dense than water? (a) less dense than water (b) denser than water
26. 26.⚖️ 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
27. 27.🔍 What do you see after pouring honey, water and oil into one glass? (a) bubbles of gas (b) three separate layers (c) the glass gets hot (d) one mixed colour
28. 28.🍯 Which of these is denser than water? (a) a ping-pong ball (b) cooking oil (c) a pebble (d) air
29. 29.🔍 Which is the odd one out? (a) a pebble (b) an ice cube (c) very salty water (d) honey
30. 30.🔮 Predict: you gently drop a coin into the tower. Where does it end up? (a) at the very bottom (b) in the water layer (c) on top of the oil (d) in the oil layer
31. 31.⚖️ 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
32. 32.🛟 Why should we wipe up spilled oil at once? (a) oil turns into honey (b) spilled oil is slippery (c) oil makes it rain (d) oil attracts magnets
33. 33.🍯 Which of these is less dense than water? (a) a coin (b) air (c) honey (d) a pebble
34. 34.🍯 Which of these is less dense than water? (a) very salty water (b) cooking oil (c) a glass marble (d) a coin
35. 35.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a battery cell (b) water with food colour (c) honey (d) a tall clear glass
36. 36.🧺 Which of these is needed for the density tower? (a) a battery cell (b) a balloon (c) a tall clear glass (d) a mirror
37. 37.🍯 Is a glass marble denser or less dense than water? (a) less dense than water (b) denser than water
38. 38.True or false: very salty water is denser than water. (a) False (b) True
39. 39.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) on top of the oil (b) in the honey layer (c) in the water layer (d) under the honey
40. 40.🔍 Which is the odd one out? (a) a coin (b) cooking oil (c) a cork (d) an ice cube

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