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