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