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