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