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 is the odd one out? (a) an ice cube (b) honey (c) a pebble (d) a coin
- 2.True or false: a cork is denser than water. (a) True (b) False
- 3.🍯 Which of these is less dense than water? (a) a pebble (b) a glass marble (c) honey (d) a cork
- 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 measure it (b) we change it (c) we keep it the same
- 5.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a spoon (b) honey (c) cooking oil (d) a magnet
- 6.🍯 Which of these is denser than water? (a) very salty water (b) an ice cube (c) a ping-pong ball (d) cooking oil
- 7.🧺 Which of these is needed for the density tower? (a) yeast (b) a tall clear glass (c) turmeric powder (d) a battery cell
- 8.🛟 Which rule keeps the density tower experiment safe? (a) throw the glass (b) pour it on the floor (c) do not lick the spoon (d) taste each layer
- 9.True or false: a mirror is needed for the density tower. (a) True (b) False
- 10.🧺 Which of these is needed for the density tower? (a) a mirror (b) a battery cell (c) yeast (d) honey
- 11.🧺 Which of these is not needed for the density tower? (a) a tall clear glass (b) a balloon (c) water with food colour (d) honey
- 12.True or false: a cork is less dense than water. (a) False (b) True
- 13.True or false: a magnet 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 glass”? (a) we keep it the same (b) we change it (c) we measure it
- 15.True or false: honey is less dense than water. (a) False (b) True
- 16.🍯 Which of these is denser than water? (a) a ping-pong ball (b) air (c) a pebble (d) a cork
- 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 the one thing we change? (a) the order of pouring (b) the same three liquids (c) the same glass (d) the order of the layers
- 18.🔍 Which layer is on top in the honey-water-oil tower? (a) cooking oil (b) honey (c) coloured water (d) the spoon
- 19.🛟 Why should we wipe up spilled oil at once? (a) oil makes it rain (b) oil attracts magnets (c) spilled oil is slippery (d) oil turns into honey
- 20.🍯 Which of these is denser than water? (a) an ice cube (b) cooking oil (c) honey (d) a cork
- 21.🔍 Which is the odd one out? (a) a glass marble (b) a pebble (c) a coin (d) air
- 22.🔍 Which is the odd one out? (a) a pebble (b) a cork (c) an ice cube (d) air
- 23.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) turmeric powder (b) a tall clear glass (c) water with food colour (d) cooking oil
- 24.🧺 Do we need a balloon for the density tower? (a) needed (b) not needed
- 25.🧺 Which of these is needed for the density tower? (a) a balloon (b) a magnet (c) a spoon (d) a mirror
- 26.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a spoon (b) a balloon (c) honey (d) a tall clear glass
- 27.🧺 Which of these is needed for the density tower? (a) a magnet (b) a balloon (c) water with food colour (d) yeast
- 28.🔍 Which is the odd one out? (a) a coin (b) honey (c) cooking oil (d) a pebble
- 29.🍯 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
- 30.True or false: honey is not needed for the density tower. (a) True (b) False
- 31.⚖️ 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
- 32.🧺 Do we need cooking oil for the density tower? (a) needed (b) not needed
- 33.⚖️ 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 change it (b) we keep it the same (c) we measure it
- 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.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they turn to honey (b) they separate again (c) they become solid (d) they mix for ever
- 36.🍯 Is air denser or less dense than water? (a) less dense than water (b) denser than water
- 37.True or false: a coin is less dense than water. (a) True (b) False
- 38.🧺 Which of these is not needed for the density tower? (a) water with food colour (b) cooking oil (c) a spoon (d) turmeric powder
- 39.True or false: a pebble is denser than water. (a) True (b) False
- 40.🧺 Which of these is not needed for the density tower? (a) a tall clear glass (b) water with food colour (c) cooking oil (d) a magnet
Answer key
- an ice cube
- False
- a cork
- we keep it the same
- a magnet
- very salty water
- a tall clear glass
- do not lick the spoon
- False
- honey
- a balloon
- True
- False
- we keep it the same
- False
- a pebble
- the order of pouring
- cooking oil
- spilled oil is slippery
- honey
- air
- a pebble
- turmeric powder
- not needed
- a spoon
- a balloon
- water with food colour
- cooking oil
- it is the densest
- False
- True
- needed
- we change it
- oil is less dense
- they separate again
- less dense than water
- False
- turmeric powder
- True
- a magnet
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