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