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