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