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