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