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