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? Which of these is kept the same? (a) how much of each liquid (b) the order of pouring (c) the order of the layers
- 2.🍯 Which of these is denser than water? (a) air (b) cooking oil (c) a ping-pong ball (d) a glass marble
- 3.True or false: a tall clear glass is not needed for the density tower. (a) False (b) True
- 4.🍯 Which of these is denser than water? (a) a ping-pong ball (b) a cork (c) very salty water (d) cooking oil
- 5.🍯 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
- 6.🔍 Which is the odd one out? (a) cooking oil (b) an ice cube (c) very salty water (d) air
- 7.🔍 Which is the odd one out? (a) honey (b) a glass marble (c) a ping-pong ball (d) very salty water
- 8.True or false: a coin is denser than water. (a) False (b) True
- 9.True or false: air is denser than water. (a) True (b) False
- 10.⚖️ 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
- 11.🛟 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
- 12.🛟 Which rule keeps the density tower experiment safe? (a) pour it on the floor (b) taste each layer (c) throw the glass (d) do not lick the spoon
- 13.🍯 Is a cork denser or less dense than water? (a) denser than water (b) less dense than water
- 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 “the order of pouring”? (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 same three liquids”? (a) we keep it the same (b) we change it (c) we measure it
- 16.🧺 Do we need cooking oil for the density tower? (a) not needed (b) needed
- 17.⚖️ 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 order of pouring (c) the same glass
- 18.⚖️ 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
- 19.🍯 Is a coin denser or less dense than water? (a) less dense than water (b) denser than water
- 20.🍯 Is a pebble denser or less dense than water? (a) less dense than water (b) denser than water
- 21.🧺 Which of these is not needed for the density tower? (a) water with food colour (b) a tall clear glass (c) a battery cell (d) a spoon
- 22.🔍 Which layer is on top in the honey-water-oil tower? (a) the spoon (b) honey (c) cooking oil (d) coloured water
- 23.🧺 Which of these is needed for the density tower? (a) turmeric powder (b) a battery cell (c) a balloon (d) honey
- 24.True or false: a glass marble is less dense than water. (a) False (b) True
- 25.🍯 Is very salty water denser or less dense than water? (a) less dense than water (b) denser than water
- 26.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) cooking oil (b) a spoon (c) a tall clear glass (d) a battery cell
- 27.🧺 Which of these is not needed for the density tower? (a) a spoon (b) water with food colour (c) cooking oil (d) a balloon
- 28.🍯 Which of these is less dense than water? (a) honey (b) air (c) a pebble (d) very salty water
- 29.⚖️ 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
- 30.True or false: a cork is less dense than water. (a) False (b) True
- 31.🧺 Which of these is needed for the density tower? (a) yeast (b) a balloon (c) a battery cell (d) a tall clear glass
- 32.True or false: a balloon is not needed for the density tower. (a) True (b) False
- 33.🧺 Which of these is not needed for the density tower? (a) honey (b) a tall clear glass (c) turmeric powder (d) cooking oil
- 34.⚖️ 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 keep it the same (b) we measure it (c) we change it
- 35.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they mix for ever (b) they become solid (c) they turn to honey (d) they separate again
- 36.🧺 Do we need a balloon for the density tower? (a) needed (b) not needed
- 37.🍯 Which of these is denser than water? (a) cooking oil (b) a pebble (c) air (d) an ice cube
- 38.True or false: a ping-pong ball is denser than water. (a) True (b) False
- 39.🔍 Which is the odd one out? (a) honey (b) a coin (c) air (d) a pebble
- 40.⚖️ 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 same three liquids (c) the order of pouring (d) the same glass
Answer key
- how much of each liquid
- a glass marble
- False
- very salty water
- it is the densest
- very salty water
- a ping-pong ball
- True
- False
- False
- spilled oil is slippery
- do not lick the spoon
- less dense than water
- we change it
- we keep it the same
- needed
- the same glass
- True
- denser than water
- denser than water
- a battery cell
- cooking oil
- honey
- False
- denser than water
- a battery cell
- a balloon
- air
- we keep it the same
- True
- a tall clear glass
- True
- turmeric powder
- we keep it the same
- they separate again
- not needed
- a pebble
- False
- air
- the order of pouring
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