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