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