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