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