Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 430 · 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.🍯 Is cooking oil denser or less dense than water? (a) less dense than water (b) denser than water
2. 2.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) under the honey (b) in the water layer (c) on top of the oil (d) in the honey layer
3. 3.🛟 Why should we wipe up spilled oil at once? (a) oil attracts magnets (b) oil makes it rain (c) spilled oil is slippery (d) oil turns into honey
4. 4.True or false: an ice cube is less dense than water. (a) False (b) True
5. 5.True or false: water with food colour is needed for the density tower. (a) False (b) True
6. 6.🧺 Which of these is needed for the density tower? (a) a mirror (b) a balloon (c) a battery cell (d) cooking oil
7. 7.🍯 Is very salty water denser or less dense than water? (a) denser than water (b) less dense than water
8. 8.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a tall clear glass (b) cooking oil (c) a spoon (d) a magnet
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 “the order of pouring”? (a) we measure it (b) we change it (c) we keep it the same
10. 10.🍯 Which of these is denser than water? (a) a ping-pong ball (b) air (c) an ice cube (d) very salty water
11. 11.⚖️ 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
12. 12.⚖️ 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 order of pouring (b) the same three liquids (c) the order of the layers (d) how much of each liquid
13. 13.🔍 Which is the odd one out? (a) an ice cube (b) a pebble (c) a cork (d) cooking oil
14. 14.🍯 Is a glass marble denser or less dense than water? (a) denser than water (b) less dense than water
15. 15.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) water with food colour (b) a mirror (c) a spoon (d) cooking oil
16. 16.🧺 Do we need water with food colour for the density tower? (a) needed (b) not needed
17. 17.⚖️ 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 glass (b) the same three liquids (c) how much of each liquid (d) the order of the layers
18. 18.🔍 Which is the odd one out? (a) a glass marble (b) a pebble (c) air (d) honey
19. 19.📘 What does “dense” mean? (a) heavy for its size (b) very hot (c) very colourful (d) very thin
20. 20.True or false: a balloon is needed for the density tower. (a) False (b) True
21. 21.🧺 Do we need turmeric powder for the density tower? (a) needed (b) not needed
22. 22.⚖️ 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 what we measure. (a) False (b) True
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 order of pouring is the one thing we change. (a) False (b) True
24. 24.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) cooking oil (b) a tall clear glass (c) a balloon (d) water with food colour
25. 25.🧺 Do we need a mirror for the density tower? (a) not needed (b) needed
26. 26.True or false: a pebble is less dense than water. (a) False (b) True
27. 27.🧺 Do we need yeast for the density tower? (a) needed (b) not needed
28. 28.🔍 Which is the odd one out? (a) a cork (b) cooking oil (c) an ice cube (d) a coin
29. 29.🔍 Which layer is on top in the honey-water-oil tower? (a) coloured water (b) the spoon (c) honey (d) cooking oil
30. 30.⚖️ 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
31. 31.🍯 Which of these is denser than water? (a) a ping-pong ball (b) a coin (c) a cork (d) air
32. 32.🍯 Which of these is denser than water? (a) an ice cube (b) a ping-pong ball (c) a glass marble (d) cooking oil
33. 33.🍯 Is a ping-pong ball denser or less dense than water? (a) denser than water (b) less dense than water
34. 34.🍯 Which of these is less dense than water? (a) very salty water (b) honey (c) a cork (d) a glass marble
35. 35.🍯 Which of these is less dense than water? (a) a coin (b) cooking oil (c) a glass marble (d) honey
36. 36.🛟 Which rule keeps the density tower experiment safe? (a) do not lick the spoon (b) pour it on the floor (c) taste each layer (d) throw the glass
37. 37.🔮 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
38. 38.True or false: turmeric powder is needed for the density tower. (a) True (b) False
39. 39.🔍 What do you see after pouring honey, water and oil into one glass? (a) the glass gets hot (b) bubbles of gas (c) one mixed colour (d) three separate layers
40. 40.⚖️ 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 what we measure. (a) True (b) False

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