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