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