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