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.🍯 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
- 2.🔍 Which is the odd one out? (a) a pebble (b) honey (c) cooking oil (d) very salty water
- 3.🍯 Which of these is less dense than water? (a) honey (b) a ping-pong ball (c) a pebble (d) a glass marble
- 4.⚖️ 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 change it (b) we keep it the same (c) we measure it
- 5.🧺 Do we need water with food colour for the density tower? (a) not needed (b) needed
- 6.🧺 Which of these is not needed for the density tower? (a) a spoon (b) a tall clear glass (c) a battery cell (d) water with food colour
- 7.🍯 Is a cork denser or less dense than water? (a) denser than water (b) less dense than water
- 8.🧺 Do we need cooking oil for the density tower? (a) not needed (b) needed
- 9.🧺 Which of these is needed for the density tower? (a) cooking oil (b) turmeric powder (c) a magnet (d) a battery cell
- 10.🧺 Do we need a battery cell for the density tower? (a) needed (b) not needed
- 11.True or false: a battery cell is not needed for the density tower. (a) False (b) True
- 12.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) honey (b) turmeric powder (c) water with food colour (d) cooking oil
- 13.🔍 What do you see after pouring honey, water and oil into one glass? (a) one mixed colour (b) the glass gets hot (c) three separate layers (d) bubbles of gas
- 14.⚖️ 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 measure it (b) we keep it the same (c) we change it
- 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 kept the same? (a) the order of the layers (b) how much of each liquid (c) the order of pouring
- 16.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) yeast (b) a spoon (c) a tall clear glass (d) honey
- 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 order of pouring is kept the same. (a) True (b) False
- 18.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a tall clear glass (b) cooking oil (c) honey (d) a battery cell
- 19.🔍 Which is the odd one out? (a) very salty water (b) a ping-pong ball (c) air (d) cooking oil
- 20.True or false: very salty water is less dense than water. (a) True (b) False
- 21.⚖️ 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 order of the layers (c) the same glass
- 22.🧺 Do we need a tall clear glass for the density tower? (a) not needed (b) needed
- 23.🍯 Which of these is denser than water? (a) a glass marble (b) cooking oil (c) air (d) an ice cube
- 24.🛟 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
- 25.🍯 Which of these is less dense than water? (a) a coin (b) honey (c) a cork (d) very salty water
- 26.🧺 Do we need honey for the density tower? (a) needed (b) not needed
- 27.🧺 Do we need a magnet for the density tower? (a) needed (b) not needed
- 28.True or false: a glass marble is denser than water. (a) False (b) True
- 29.🍯 Which of these is less dense than water? (a) a coin (b) an ice cube (c) very salty water (d) honey
- 30.🧺 Do we need a spoon for the density tower? (a) not needed (b) needed
- 31.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) under the honey (b) in the water layer (c) in the honey layer (d) on top of the oil
- 32.🧺 Which of these is not needed for the density tower? (a) honey (b) water with food colour (c) turmeric powder (d) a spoon
- 33.🔍 Which is the odd one out? (a) honey (b) cooking oil (c) a cork (d) an ice cube
- 34.🧺 Which of these is needed for the density tower? (a) a balloon (b) a magnet (c) honey (d) a battery cell
- 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 the one thing we change? (a) the order of pouring (b) the order of the layers (c) the same glass (d) how much of each liquid
- 36.🍯 Is air denser or less dense than water? (a) less dense than water (b) denser than water
- 37.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a tall clear glass (b) honey (c) a mirror (d) cooking oil
- 38.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) honey (b) a magnet (c) a tall clear glass (d) water with food colour
- 39.🧺 Do we need a balloon for the density tower? (a) not needed (b) needed
- 40.True or false: honey is less dense than water. (a) True (b) False
Answer key
- it is the densest
- cooking oil
- a ping-pong ball
- we keep it the same
- needed
- a battery cell
- less dense than water
- needed
- cooking oil
- not needed
- True
- turmeric powder
- three separate layers
- we change it
- how much of each liquid
- yeast
- False
- a battery cell
- very salty water
- False
- the same glass
- needed
- a glass marble
- spilled oil is slippery
- a cork
- needed
- not needed
- True
- an ice cube
- needed
- on top of the oil
- turmeric powder
- honey
- honey
- the order of pouring
- less dense than water
- a mirror
- a magnet
- not needed
- False
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