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