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