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