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