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