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