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