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