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