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