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