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