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