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