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