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