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