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