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