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