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.⚖️ 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 keep it the same (c) we change it
- 2.🧺 Which of these is not needed for the density tower? (a) a balloon (b) honey (c) water with food colour (d) a spoon
- 3.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) honey (b) a tall clear glass (c) yeast (d) water with food colour
- 4.🧺 Which of these is needed for the density tower? (a) a magnet (b) a mirror (c) a tall clear glass (d) yeast
- 5.🧺 Which of these is not needed for the density tower? (a) a tall clear glass (b) cooking oil (c) honey (d) turmeric powder
- 6.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a spoon (b) cooking oil (c) a magnet (d) honey
- 7.🍯 Which of these is less dense than water? (a) a glass marble (b) honey (c) a pebble (d) a cork
- 8.🧺 Do we need a tall clear glass for the density tower? (a) needed (b) not needed
- 9.🛟 Which rule keeps the density tower experiment safe? (a) throw the glass (b) do not lick the spoon (c) pour it on the floor (d) taste each layer
- 10.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a tall clear glass (b) water with food colour (c) a mirror (d) a spoon
- 11.⚖️ 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
- 12.⚖️ 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) how much of each liquid (b) the order of pouring (c) the order of the layers
- 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 change it (b) we keep it the same (c) we measure it
- 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 the layers is kept the same. (a) True (b) False
- 15.True or false: a battery cell is not needed for the density tower. (a) False (b) True
- 16.⚖️ 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) how much of each liquid (b) the order of pouring (c) the same glass (d) the order of the layers
- 17.🍯 Which of these is denser than water? (a) cooking oil (b) a cork (c) a glass marble (d) an ice cube
- 18.🔍 What do you see after pouring honey, water and oil into one glass? (a) three separate layers (b) the glass gets hot (c) bubbles of gas (d) one mixed colour
- 19.⚖️ 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 pouring (b) the same three liquids (c) how much of each liquid (d) the same glass
- 20.True or false: cooking oil is needed for the density tower. (a) False (b) True
- 21.⚖️ 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
- 22.⚖️ 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) True (b) False
- 23.⚖️ 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 measure it (b) we keep it the same (c) we change it
- 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 kept the same? (a) the order of pouring (b) the same three liquids (c) the order of the layers
- 25.🍯 Is an ice cube denser or less dense than water? (a) less dense than water (b) denser than water
- 26.🧺 Which of these is not needed for the density tower? (a) honey (b) water with food colour (c) a battery cell (d) cooking oil
- 27.True or false: a spoon is needed for the density tower. (a) True (b) False
- 28.🧺 Do we need cooking oil for the density tower? (a) needed (b) not needed
- 29.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) in the honey layer (b) in the water layer (c) under the honey (d) on top of the oil
- 30.True or false: an ice cube is denser than water. (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 keep it the same (b) we measure it (c) we change it
- 32.🍯 Is a ping-pong ball denser or less dense than water? (a) less dense than water (b) denser than water
- 33.📘 What does “dense” mean? (a) very hot (b) very thin (c) very colourful (d) heavy for its size
- 34.⚖️ 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 what we measure. (a) False (b) True
- 35.🍯 Which of these is less dense than water? (a) a coin (b) an ice cube (c) honey (d) very salty water
- 36.🔮 Predict: you gently drop a coin into the tower. Where does it end up? (a) on top of the oil (b) in the water layer (c) at the very bottom (d) in the oil layer
- 37.🧺 Which of these is needed for the density tower? (a) a balloon (b) a battery cell (c) a mirror (d) honey
- 38.🧺 Which of these is not needed for the density tower? (a) cooking oil (b) a tall clear glass (c) water with food colour (d) a mirror
- 39.🧺 Do we need turmeric powder for the density tower? (a) not needed (b) needed
- 40.🔍 Which is the odd one out? (a) an ice cube (b) a coin (c) a pebble (d) a glass marble
Answer key
- we keep it the same
- a balloon
- yeast
- a tall clear glass
- turmeric powder
- a magnet
- a cork
- needed
- do not lick the spoon
- a mirror
- True
- how much of each liquid
- we measure it
- False
- True
- the order of the layers
- a glass marble
- three separate layers
- the order of pouring
- True
- we keep it the same
- False
- we keep it the same
- the same three liquids
- less dense than water
- a battery cell
- True
- needed
- on top of the oil
- False
- we change it
- less dense than water
- heavy for its size
- False
- an ice cube
- at the very bottom
- honey
- a mirror
- not needed
- an ice cube
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