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 needed for the density tower? (a) a battery cell (b) a spoon (c) a balloon (d) a mirror
- 2.🛟 Which rule keeps the density tower experiment safe? (a) do not lick the spoon (b) pour it on the floor (c) throw the glass (d) taste each layer
- 3.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a tall clear glass (b) cooking oil (c) water with food colour (d) a magnet
- 4.⚖️ 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 the layers (b) how much of each liquid (c) the same three liquids (d) the order of pouring
- 5.🔮 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 honey layer (d) in the water layer
- 6.📘 What does “dense” mean? (a) very hot (b) very thin (c) very colourful (d) heavy for its size
- 7.🍯 Is a coin denser or less dense than water? (a) less dense than water (b) denser than water
- 8.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) water with food colour (b) cooking oil (c) a spoon (d) a balloon
- 9.🍯 Is a pebble denser or less dense than water? (a) less dense than water (b) denser than water
- 10.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) water with food colour (b) a battery cell (c) cooking oil (d) a spoon
- 11.⚖️ 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
- 12.⚖️ 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
- 13.🧺 Do we need a magnet for the density tower? (a) needed (b) not needed
- 14.🧺 Which of these is not needed for the density tower? (a) a spoon (b) water with food colour (c) a mirror (d) cooking oil
- 15.🧺 Which of these is needed for the density tower? (a) a mirror (b) a balloon (c) turmeric powder (d) a tall clear glass
- 16.True or false: a spoon is needed for the density tower. (a) False (b) True
- 17.🧺 Do we need a tall clear glass for the density tower? (a) not needed (b) needed
- 18.True or false: a balloon is not needed for the density tower. (a) False (b) True
- 19.🍯 Why does honey sink to the bottom of the glass? (a) it is the stickiest (b) it is the coldest (c) it is yellow (d) it is the densest
- 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 the layers is the one thing we change. (a) True (b) False
- 21.🍯 Is very salty water denser or less dense than water? (a) denser than water (b) less dense than water
- 22.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a tall clear glass (b) water with food colour (c) a mirror (d) cooking oil
- 23.⚖️ 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 change it (b) we keep it the same (c) we measure it
- 24.True or false: a tall clear glass is not needed for the density tower. (a) True (b) False
- 25.🔍 Which is the odd one out? (a) an ice cube (b) very salty water (c) honey (d) a glass marble
- 26.🍯 Is a ping-pong ball denser or less dense than water? (a) denser than water (b) less dense than water
- 27.🧺 Which of these is not needed for the density tower? (a) water with food colour (b) a tall clear glass (c) turmeric powder (d) honey
- 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 change it (b) we measure it (c) we keep it the same
- 29.🔍 Which is the odd one out? (a) very salty water (b) a glass marble (c) a pebble (d) cooking oil
- 30.🧺 Do we need a battery cell for the density tower? (a) not needed (b) needed
- 31.🔍 Which is the odd one out? (a) very salty water (b) an ice cube (c) air (d) a cork
- 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 what we measure? (a) the order of the layers (b) the same three liquids (c) how much of each liquid (d) the order of pouring
- 33.🍯 Which of these is less dense than water? (a) an ice cube (b) honey (c) a coin (d) very salty water
- 34.True or false: yeast is needed for the density tower. (a) False (b) True
- 35.True or false: honey is denser than water. (a) False (b) True
- 36.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they turn to honey (b) they become solid (c) they separate again (d) they mix for ever
- 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 order of the layers is what we measure. (a) False (b) True
- 38.🧺 Which of these is needed for the density tower? (a) a mirror (b) honey (c) a balloon (d) turmeric powder
- 39.⚖️ 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
- 40.🔮 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 oil layer (d) in the water layer
Answer key
- a spoon
- do not lick the spoon
- a magnet
- the order of pouring
- on top of the oil
- heavy for its size
- denser than water
- a balloon
- denser than water
- a battery cell
- True
- we keep it the same
- not needed
- a mirror
- a tall clear glass
- True
- needed
- True
- it is the densest
- False
- denser than water
- a mirror
- we change it
- False
- an ice cube
- less dense than water
- turmeric powder
- we keep it the same
- cooking oil
- not needed
- very salty water
- the order of the layers
- an ice cube
- False
- True
- they separate again
- True
- honey
- True
- at the very bottom
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