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 rule keeps the density tower experiment safe? (a) do not lick the spoon (b) taste each layer (c) pour it on the floor (d) throw the glass
- 2.🍯 Which of these is less dense than water? (a) a coin (b) a glass marble (c) cooking oil (d) honey
- 3.🔍 Which is the odd one out? (a) cooking oil (b) an ice cube (c) a cork (d) a glass marble
- 4.⚖️ 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 the layers”? (a) we measure it (b) we keep it the same (c) we change it
- 5.True or false: a balloon is needed for the density tower. (a) True (b) False
- 6.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) honey (b) a spoon (c) turmeric powder (d) water with food colour
- 7.🧺 Do we need turmeric powder for the density tower? (a) needed (b) not needed
- 8.🔍 Which is the odd one out? (a) a ping-pong ball (b) honey (c) cooking oil (d) air
- 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.🛟 Why should we wipe up spilled oil at once? (a) oil makes it rain (b) oil attracts magnets (c) spilled oil is slippery (d) oil turns into honey
- 11.True or false: a mirror is not needed for the density tower. (a) False (b) True
- 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 pouring is the one thing we change. (a) False (b) True
- 13.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) cooking oil (b) a mirror (c) a tall clear glass (d) honey
- 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 change it (b) we keep it the same (c) we measure it
- 15.🫗 Why does cooking oil float on top of water? (a) oil is sticky (b) oil is heavier (c) oil is hot (d) oil is less dense
- 16.🍯 Is honey denser or less dense than water? (a) less dense than water (b) denser than water
- 17.🔍 Which is the odd one out? (a) cooking oil (b) a ping-pong ball (c) a coin (d) an ice cube
- 18.🍯 Is a cork denser or less dense than water? (a) less dense than water (b) denser than water
- 19.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) honey (b) cooking oil (c) a magnet (d) a tall clear glass
- 20.🔍 Which layer is on top in the honey-water-oil tower? (a) coloured water (b) honey (c) the spoon (d) cooking oil
- 21.True or false: a spoon is not needed for the density tower. (a) False (b) True
- 22.True or false: a cork is denser than water. (a) False (b) True
- 23.True or false: honey is less dense than water. (a) False (b) True
- 24.⚖️ 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) how much of each liquid (b) the order of pouring (c) the order of the layers (d) the same glass
- 25.🔍 What do you see after pouring honey, water and oil into one glass? (a) one mixed colour (b) bubbles of gas (c) three separate layers (d) the glass gets hot
- 26.⚖️ 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 keep it the same (c) we change it
- 27.True or false: honey is not needed for the density tower. (a) True (b) False
- 28.🧺 Which of these is not needed for the density tower? (a) a mirror (b) water with food colour (c) cooking oil (d) honey
- 29.True or false: a ping-pong ball is denser than water. (a) False (b) True
- 30.⚖️ 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
- 31.🧺 Which of these is needed for the density tower? (a) a magnet (b) a balloon (c) a battery cell (d) a tall clear glass
- 32.🔮 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
- 33.⚖️ 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 kept the same. (a) False (b) True
- 34.🧺 Do we need a tall clear glass for the density tower? (a) not needed (b) needed
- 35.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) honey (b) a tall clear glass (c) cooking oil (d) a balloon
- 36.🧺 Which of these is needed for the density tower? (a) a battery cell (b) yeast (c) a spoon (d) a magnet
- 37.🍯 Which of these is less dense than water? (a) very salty water (b) air (c) a coin (d) a glass marble
- 38.🧺 Which of these is needed for the density tower? (a) a battery cell (b) a magnet (c) turmeric powder (d) cooking oil
- 39.🔮 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
- 40.True or false: air is denser than water. (a) True (b) False
Answer key
- do not lick the spoon
- cooking oil
- a glass marble
- we measure it
- False
- turmeric powder
- not needed
- honey
- we change it
- spilled oil is slippery
- True
- True
- a mirror
- we keep it the same
- oil is less dense
- denser than water
- a coin
- less dense than water
- a magnet
- cooking oil
- False
- False
- False
- the order of pouring
- three separate layers
- we keep it the same
- False
- a mirror
- False
- the same three liquids
- a tall clear glass
- they separate again
- True
- needed
- a balloon
- a spoon
- air
- cooking oil
- at the very bottom
- False
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