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