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