Density Tower Experiment Worksheet
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.
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- 1.🧺 Which of these is needed for the density tower? (a) a mirror (b) a tall clear glass (c) yeast (d) a balloon
- 2.🔍 Which is the odd one out? (a) honey (b) a pebble (c) an ice cube (d) very salty water
- 3.⚖️ 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 kept the same. (a) False (b) True
- 4.🍯 Is air denser or less dense than water? (a) denser than water (b) less dense than water
- 5.🧺 Which of these is not needed for the density tower? (a) cooking oil (b) a tall clear glass (c) a mirror (d) water with food colour
- 6.⚖️ 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 keep it the same (c) we change it
- 7.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a balloon (b) a tall clear glass (c) a spoon (d) water with food colour
- 8.True or false: a cork is denser than water. (a) False (b) True
- 9.🧺 Do we need honey for the density tower? (a) needed (b) not needed
- 10.⚖️ 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 what we measure. (a) False (b) True
- 11.🍯 Is honey denser or less dense than water? (a) less dense than water (b) denser than water
- 12.⚖️ 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 measure it (b) we change it (c) we keep it the same
- 13.🛟 Why should we wipe up spilled oil at once? (a) spilled oil is slippery (b) oil makes it rain (c) oil turns into honey (d) oil attracts magnets
- 14.🧺 Do we need yeast for the density tower? (a) needed (b) not needed
- 15.⚖️ 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
- 16.🍯 Is an ice cube denser or less dense than water? (a) less dense than water (b) denser than water
- 17.⚖️ 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
- 18.True or false: honey is denser than water. (a) False (b) True
- 19.🍯 Which of these is less dense than water? (a) honey (b) a cork (c) a coin (d) very salty water
- 20.⚖️ 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) True (b) False
- 21.True or false: air is denser than water. (a) True (b) False
- 22.⚖️ 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 change it (b) we measure it (c) we keep it the same
- 23.True or false: yeast is not needed for the density tower. (a) False (b) True
- 24.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) under the honey (b) in the honey layer (c) in the water layer (d) on top of the oil
- 25.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a tall clear glass (b) a spoon (c) a battery cell (d) water with food colour
- 26.⚖️ 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) False (b) True
- 27.⚖️ 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) how much of each liquid (b) the same glass (c) the order of pouring (d) the order of the layers
- 28.🧺 Do we need cooking oil for the density tower? (a) needed (b) not needed
- 29.True or false: honey is less dense than water. (a) False (b) True
- 30.🧺 Do we need a tall clear glass for the density tower? (a) needed (b) not needed
- 31.⚖️ 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
- 32.🔍 Which is the odd one out? (a) a coin (b) air (c) a glass marble (d) honey
- 33.🧺 Which of these is not needed for the density tower? (a) a tall clear glass (b) cooking oil (c) turmeric powder (d) a spoon
- 34.🫗 Why does cooking oil float on top of water? (a) oil is heavier (b) oil is less dense (c) oil is sticky (d) oil is hot
- 35.⚖️ 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 pouring (b) the same glass (c) how much of each liquid (d) the order of the layers
- 36.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) honey (b) yeast (c) cooking oil (d) a tall clear glass
- 37.True or false: an ice cube is less dense than water. (a) False (b) True
- 38.🔍 Which is the odd one out? (a) a coin (b) very salty water (c) honey (d) a cork
- 39.🍯 Why does honey sink to the bottom of the glass? (a) it is the stickiest (b) it is the densest (c) it is yellow (d) it is the coldest
- 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
Answer key
- a tall clear glass
- an ice cube
- True
- less dense than water
- a mirror
- we keep it the same
- a balloon
- False
- needed
- True
- denser than water
- we keep it the same
- spilled oil is slippery
- not needed
- False
- less dense than water
- False
- True
- a cork
- False
- False
- we keep it the same
- True
- on top of the oil
- a battery cell
- False
- the order of pouring
- needed
- False
- needed
- we change it
- air
- turmeric powder
- oil is less dense
- the order of the layers
- yeast
- True
- a cork
- it is the densest
- False
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