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