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