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