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 is the odd one out? (a) a cork (b) an ice cube (c) a coin (d) cooking oil
- 2.🔍 Which is the odd one out? (a) honey (b) a glass marble (c) a cork (d) very salty water
- 3.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) honey (b) a tall clear glass (c) a magnet (d) cooking oil
- 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 three liquids is what we measure. (a) True (b) False
- 5.🧺 Which of these is needed for the density tower? (a) a balloon (b) yeast (c) cooking oil (d) a magnet
- 6.True or false: air is denser than water. (a) False (b) True
- 7.🧺 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
- 8.⚖️ 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 same three liquids (b) the order of pouring (c) how much of each liquid (d) the order of the layers
- 9.⚖️ 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) the order of pouring (c) how much of each liquid (d) the same three liquids
- 10.🍯 Which of these is less dense than water? (a) very salty water (b) honey (c) a coin (d) an ice cube
- 11.🧺 Which of these is needed for the density tower? (a) a magnet (b) a balloon (c) a battery cell (d) water with food colour
- 12.True or false: a battery cell is needed for the density tower. (a) True (b) False
- 13.⚖️ 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 measure it (b) we keep it the same (c) we change it
- 14.True or false: turmeric powder is needed for the density tower. (a) False (b) True
- 15.🔍 Which is the odd one out? (a) a coin (b) a pebble (c) an ice cube (d) a glass marble
- 16.True or false: a tall clear glass is not needed for the density tower. (a) True (b) False
- 17.🍯 Which of these is denser than water? (a) a pebble (b) cooking oil (c) an ice cube (d) a cork
- 18.🍯 Which of these is denser than water? (a) cooking oil (b) a cork (c) a ping-pong ball (d) honey
- 19.True or false: very salty water is denser than water. (a) False (b) True
- 20.🧺 Which of these is not needed for the density tower? (a) a tall clear glass (b) honey (c) water with food colour (d) a balloon
- 21.🧺 Which of these is needed for the density tower? (a) a tall clear glass (b) turmeric powder (c) a mirror (d) a balloon
- 22.⚖️ 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
- 23.True or false: a glass marble is less dense than water. (a) False (b) True
- 24.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they separate again (b) they turn to honey (c) they mix for ever (d) they become solid
- 25.🍯 Is cooking oil denser or less dense than water? (a) less dense than water (b) denser than water
- 26.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a tall clear glass (b) a spoon (c) turmeric powder (d) cooking oil
- 27.🍯 Which of these is denser than water? (a) a glass marble (b) an ice cube (c) cooking oil (d) air
- 28.🧺 Do we need a tall clear glass for the density tower? (a) not needed (b) needed
- 29.🍯 Is very salty water denser or less dense than water? (a) less dense than water (b) denser than water
- 30.🛟 Why should we wipe up spilled oil at once? (a) oil turns into honey (b) oil makes it rain (c) spilled oil is slippery (d) oil attracts magnets
- 31.🧺 Do we need a balloon for the density tower? (a) not needed (b) needed
- 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 kept the same? (a) the same glass (b) the order of pouring (c) the order of the layers
- 33.🔍 What do you see after pouring honey, water and oil into one glass? (a) three separate layers (b) bubbles of gas (c) one mixed colour (d) the glass gets hot
- 34.⚖️ 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
- 35.🔍 Which is the odd one out? (a) cooking oil (b) honey (c) very salty water (d) a glass marble
- 36.True or false: a balloon is needed for the density tower. (a) False (b) True
- 37.🧺 Do we need a mirror for the density tower? (a) not needed (b) needed
- 38.🧺 Which of these is needed for the density tower? (a) a magnet (b) a balloon (c) a spoon (d) a battery cell
- 39.🔍 Which is the odd one out? (a) very salty water (b) air (c) a ping-pong ball (d) a cork
- 40.True or false: a balloon is not needed for the density tower. (a) False (b) True
Answer key
- a coin
- a cork
- a magnet
- False
- cooking oil
- False
- a battery cell
- the order of the layers
- the order of pouring
- an ice cube
- water with food colour
- False
- we keep it the same
- False
- an ice cube
- False
- a pebble
- honey
- True
- a balloon
- a tall clear glass
- True
- False
- they separate again
- less dense than water
- turmeric powder
- a glass marble
- needed
- denser than water
- spilled oil is slippery
- not needed
- the same glass
- three separate layers
- we keep it the same
- cooking oil
- False
- not needed
- a spoon
- very salty water
- True
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