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.🧺 Do we need yeast for the density tower? (a) needed (b) not needed
- 2.⚖️ 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 the layers (c) the order of pouring
- 3.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a tall clear glass (b) honey (c) yeast (d) a spoon
- 4.⚖️ 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 the layers (b) the order of pouring (c) the same glass
- 5.🔍 Which is the odd one out? (a) a cork (b) air (c) honey (d) a ping-pong ball
- 6.🛟 Why should we wipe up spilled oil at once? (a) spilled oil is slippery (b) oil makes it rain (c) oil attracts magnets (d) oil turns into honey
- 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 order of pouring (b) the order of the layers (c) how much of each liquid (d) the same glass
- 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 keep it the same (b) we change it (c) we measure it
- 9.True or false: a balloon is not needed for the density tower. (a) True (b) False
- 10.🛟 Which rule keeps the density tower experiment safe? (a) taste each layer (b) do not lick the spoon (c) throw the glass (d) pour it on the floor
- 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 same three liquids is the one thing we change. (a) False (b) True
- 12.🔍 Which layer is on top in the honey-water-oil tower? (a) the spoon (b) honey (c) coloured water (d) cooking oil
- 13.🔮 Predict: you gently drop a coin into the tower. Where does it end up? (a) in the water layer (b) in the oil layer (c) at the very bottom (d) on top of the oil
- 14.🧺 Which of these is not needed for the density tower? (a) a magnet (b) a tall clear glass (c) cooking oil (d) a spoon
- 15.🍯 Why does honey sink to the bottom of the glass? (a) it is the stickiest (b) it is yellow (c) it is the coldest (d) it is the densest
- 16.⚖️ 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
- 17.🔍 Which is the odd one out? (a) a glass marble (b) a pebble (c) honey (d) an ice cube
- 18.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) honey (b) a spoon (c) a battery cell (d) water with food colour
- 19.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) turmeric powder (b) a spoon (c) a tall clear glass (d) cooking oil
- 20.🧺 Do we need a balloon for the density tower? (a) not needed (b) needed
- 21.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a mirror (b) water with food colour (c) a tall clear glass (d) honey
- 22.🧺 Which of these is not needed for the density tower? (a) turmeric powder (b) cooking oil (c) a spoon (d) a tall clear glass
- 23.True or false: turmeric powder is needed for the density tower. (a) False (b) True
- 24.True or false: cooking oil is less dense than water. (a) True (b) False
- 25.True or false: a glass marble is less dense than water. (a) True (b) False
- 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 same three liquids is what we measure. (a) False (b) True
- 27.🧺 Which of these is needed for the density tower? (a) yeast (b) a balloon (c) a spoon (d) turmeric powder
- 28.True or false: a tall clear glass is needed for the density tower. (a) True (b) False
- 29.True or false: yeast is not needed for the density tower. (a) False (b) True
- 30.True or false: a ping-pong ball is less dense than water. (a) True (b) False
- 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 “how much of each liquid”? (a) we keep it the same (b) we measure it (c) we change it
- 32.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) in the honey layer (b) on top of the oil (c) under the honey (d) in the water layer
- 33.🧺 Which of these is needed for the density tower? (a) a balloon (b) a tall clear glass (c) a mirror (d) a battery cell
- 34.⚖️ 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
- 35.🍯 Is a pebble denser or less dense than water? (a) denser than water (b) less dense than water
- 36.🍯 Which of these is denser than water? (a) air (b) cooking oil (c) a pebble (d) a ping-pong ball
- 37.🧺 Do we need turmeric powder for the density tower? (a) needed (b) not needed
- 38.🧺 Which of these is not needed for the density tower? (a) water with food colour (b) a spoon (c) a balloon (d) honey
- 39.🍯 Which of these is denser than water? (a) cooking oil (b) a coin (c) air (d) an ice cube
- 40.True or false: a coin is denser than water. (a) False (b) True
Answer key
- not needed
- the same three liquids
- yeast
- the same glass
- honey
- spilled oil is slippery
- the order of pouring
- we measure it
- True
- do not lick the spoon
- False
- cooking oil
- at the very bottom
- a magnet
- it is the densest
- we change it
- an ice cube
- a battery cell
- turmeric powder
- not needed
- a mirror
- turmeric powder
- False
- True
- False
- False
- a spoon
- True
- True
- True
- we keep it the same
- on top of the oil
- a tall clear glass
- True
- denser than water
- a pebble
- not needed
- a balloon
- a coin
- True
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