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