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 less dense than water? (a) a coin (b) a glass marble (c) honey (d) cooking oil
- 2.🛟 Which rule keeps the density tower experiment safe? (a) throw the glass (b) pour it on the floor (c) do not lick the spoon (d) taste each layer
- 3.🍯 Which of these is less dense than water? (a) a coin (b) very salty water (c) a pebble (d) an ice cube
- 4.🫗 Why does cooking oil float on top of water? (a) oil is heavier (b) oil is sticky (c) oil is less dense (d) oil is hot
- 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 spoon (d) turmeric powder
- 6.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) in the water layer (b) in the honey layer (c) under the honey (d) on top of the oil
- 7.🍯 Which of these is less dense than water? (a) a coin (b) a pebble (c) a glass marble (d) a cork
- 8.True or false: cooking oil is less dense than water. (a) False (b) True
- 9.🔍 Which is the odd one out? (a) air (b) a ping-pong ball (c) very salty water (d) cooking oil
- 10.🔍 Which is the odd one out? (a) honey (b) a glass marble (c) a coin (d) air
- 11.⚖️ 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 the one thing we change. (a) True (b) False
- 12.🧺 Which of these is needed for the density tower? (a) a magnet (b) a tall clear glass (c) yeast (d) a battery cell
- 13.True or false: a tall clear glass is not needed for the density tower. (a) True (b) False
- 14.True or false: a coin is less dense than water. (a) True (b) False
- 15.True or false: turmeric powder is not needed for the density tower. (a) False (b) True
- 16.🧺 Do we need a tall clear glass for the density tower? (a) needed (b) not needed
- 17.🧺 Which of these is needed for the density tower? (a) a spoon (b) a mirror (c) a balloon (d) yeast
- 18.🧺 Do we need a magnet for the density tower? (a) needed (b) not needed
- 19.True or false: yeast is needed for the density tower. (a) False (b) True
- 20.🍯 Is honey denser or less dense than water? (a) less dense than water (b) denser than water
- 21.🔍 Which is the odd one out? (a) a coin (b) a ping-pong ball (c) a glass marble (d) a pebble
- 22.⚖️ 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) how much of each liquid
- 23.🍯 Which of these is denser than water? (a) an ice cube (b) air (c) a glass marble (d) a ping-pong ball
- 24.True or false: cooking oil is needed for the density tower. (a) True (b) False
- 25.🧺 Which of these is not needed for the density tower? (a) cooking oil (b) a mirror (c) honey (d) a tall clear glass
- 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.🍯 Is air denser or less dense than water? (a) denser than water (b) less dense than water
- 28.⚖️ 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 change it (c) we keep it the same
- 29.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a spoon (b) a tall clear glass (c) a battery cell (d) water with food colour
- 30.⚖️ 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 measure it (c) we keep it the same
- 31.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? True or false: how much of each liquid is kept the same. (a) True (b) False
- 32.🧺 Do we need yeast for the density tower? (a) not needed (b) needed
- 33.🍯 Which of these is less dense than water? (a) honey (b) a glass marble (c) a coin (d) a ping-pong ball
- 34.🧺 Do we need cooking oil for the density tower? (a) not needed (b) needed
- 35.🍯 Which of these is denser than water? (a) a ping-pong ball (b) very salty water (c) air (d) cooking oil
- 36.🍯 Which of these is less dense than water? (a) a coin (b) a pebble (c) air (d) very salty water
- 37.🔍 Which is the odd one out? (a) a coin (b) an ice cube (c) a cork (d) cooking oil
- 38.🧺 Do we need turmeric powder for the density tower? (a) needed (b) not needed
- 39.🍯 Which of these is denser than water? (a) a coin (b) cooking oil (c) an ice cube (d) a ping-pong ball
- 40.True or false: a spoon is needed for the density tower. (a) True (b) False
Answer key
- cooking oil
- do not lick the spoon
- an ice cube
- oil is less dense
- turmeric powder
- on top of the oil
- a cork
- True
- very salty water
- air
- False
- a tall clear glass
- False
- False
- True
- needed
- a spoon
- not needed
- False
- denser than water
- a ping-pong ball
- the order of pouring
- a glass marble
- True
- a mirror
- we keep it the same
- less dense than water
- we measure it
- a battery cell
- we keep it the same
- True
- not needed
- a ping-pong ball
- needed
- very salty water
- air
- a coin
- not needed
- a coin
- True
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