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