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