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