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