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