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