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