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