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.🔍 Which is the odd one out? (a) a coin (b) an ice cube (c) a glass marble (d) a pebble
- 2.🧺 Which of these is not needed for the density tower? (a) a tall clear glass (b) honey (c) a magnet (d) cooking oil
- 3.🧺 Which of these is not needed for the density tower? (a) a spoon (b) a tall clear glass (c) a mirror (d) cooking oil
- 4.True or false: a mirror is needed for the density tower. (a) False (b) True
- 5.True or false: a spoon is needed for the density tower. (a) False (b) True
- 6.🧺 Do we need a battery cell for the density tower? (a) needed (b) not needed
- 7.🛟 Why should we wipe up spilled oil at once? (a) oil turns into honey (b) oil attracts magnets (c) oil makes it rain (d) spilled oil is slippery
- 8.🔍 Which is the odd one out? (a) an ice cube (b) very salty water (c) cooking oil (d) air
- 9.⚖️ 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 order of the layers (c) the same three liquids (d) the order of pouring
- 10.🧺 Do we need yeast for the density tower? (a) not needed (b) needed
- 11.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a battery cell (b) a spoon (c) water with food colour (d) a tall clear glass
- 12.🍯 Which of these is less dense than water? (a) an ice cube (b) very salty water (c) a pebble (d) honey
- 13.⚖️ 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
- 14.⚖️ 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) True (b) False
- 15.🍯 Is honey denser or less dense than water? (a) less dense than water (b) denser than water
- 16.🫗 Why does cooking oil float on top of water? (a) oil is less dense (b) oil is hot (c) oil is heavier (d) oil is sticky
- 17.🔮 Predict: you gently drop a coin into the tower. Where does it end up? (a) on top of the oil (b) at the very bottom (c) in the water layer (d) in the oil layer
- 18.True or false: a coin is denser than water. (a) False (b) True
- 19.⚖️ 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 change it (b) we measure it (c) we keep it the same
- 20.True or false: honey is needed for the density tower. (a) True (b) False
- 21.🧺 Do we need honey for the density tower? (a) needed (b) not needed
- 22.🍯 Why does honey sink to the bottom of the glass? (a) it is the coldest (b) it is yellow (c) it is the densest (d) it is the stickiest
- 23.True or false: a battery cell 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) water with food colour (b) cooking oil (c) a mirror (d) a tall clear glass
- 25.⚖️ 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 three liquids”? (a) we measure it (b) we keep it the same (c) we change it
- 26.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) cooking oil (b) a spoon (c) honey (d) a magnet
- 27.🔍 Which is the odd one out? (a) a pebble (b) a ping-pong ball (c) honey (d) a glass marble
- 28.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) honey (b) a tall clear glass (c) water with food colour (d) yeast
- 29.🧺 Which of these is needed for the density tower? (a) a battery cell (b) turmeric powder (c) a balloon (d) honey
- 30.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) cooking oil (b) a balloon (c) honey (d) a spoon
- 31.⚖️ 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
- 32.📘 What does “dense” mean? (a) very hot (b) very colourful (c) very thin (d) heavy for its size
- 33.True or false: honey is less dense than water. (a) False (b) True
- 34.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? True or false: how much of each liquid is what we measure. (a) True (b) False
- 35.🔍 Which is the odd one out? (a) air (b) a ping-pong ball (c) a glass marble (d) cooking oil
- 36.⚖️ 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 pouring (b) how much of each liquid (c) the order of the layers
- 37.🍯 Which of these is denser than water? (a) an ice cube (b) a ping-pong ball (c) cooking oil (d) a glass marble
- 38.🧺 Do we need a balloon for the density tower? (a) needed (b) not needed
- 39.🔍 What do you see after pouring honey, water and oil into one glass? (a) one mixed colour (b) the glass gets hot (c) three separate layers (d) bubbles of gas
- 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 pouring”? (a) we change it (b) we measure it (c) we keep it the same
Answer key
- an ice cube
- a magnet
- a mirror
- False
- True
- not needed
- spilled oil is slippery
- very salty water
- the order of pouring
- not needed
- a battery cell
- an ice cube
- we measure it
- False
- denser than water
- oil is less dense
- at the very bottom
- True
- we keep it the same
- True
- needed
- it is the densest
- False
- a mirror
- we keep it the same
- a magnet
- a ping-pong ball
- yeast
- honey
- a balloon
- False
- heavy for its size
- False
- False
- a glass marble
- how much of each liquid
- a glass marble
- not needed
- three separate layers
- we change it
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