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