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