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