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