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