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 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
- 2.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) cooking oil (b) turmeric powder (c) honey (d) a tall clear glass
- 3.🧺 Which of these is not needed for the density tower? (a) water with food colour (b) honey (c) a spoon (d) a mirror
- 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 what we measure? (a) the same three liquids (b) the same glass (c) the order of pouring (d) the order of the layers
- 5.🍯 Which of these is less dense than water? (a) a glass marble (b) a coin (c) a cork (d) honey
- 6.🧺 Do we need a tall clear glass for the density tower? (a) not needed (b) needed
- 7.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) yeast (b) honey (c) a tall clear glass (d) a spoon
- 8.🔍 Which is the odd one out? (a) a coin (b) very salty water (c) a ping-pong ball (d) a glass marble
- 9.🔮 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
- 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 same three liquids”? (a) we change it (b) we measure it (c) we keep it the same
- 11.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a spoon (b) a balloon (c) water with food colour (d) honey
- 12.🧺 Do we need a magnet for the density tower? (a) not needed (b) needed
- 13.🧺 Do we need a balloon for the density tower? (a) not needed (b) needed
- 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 the one thing we change? (a) the order of pouring (b) the same three liquids (c) how much of each liquid (d) the same glass
- 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 order of pouring is what we measure. (a) True (b) False
- 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 glass”? (a) we keep it the same (b) we change it (c) we measure it
- 17.⚖️ 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
- 18.🛟 Which rule keeps the density tower experiment safe? (a) taste each layer (b) do not lick the spoon (c) pour it on the floor (d) throw the glass
- 19.🛟 Why should we wipe up spilled oil at once? (a) oil turns into honey (b) oil makes it rain (c) oil attracts magnets (d) spilled oil is slippery
- 20.🔍 Which is the odd one out? (a) an ice cube (b) a pebble (c) air (d) a ping-pong ball
- 21.🧺 Do we need honey for the density tower? (a) not needed (b) needed
- 22.🍯 Is cooking oil denser or less dense than water? (a) less dense than water (b) denser than water
- 23.🔍 Which is the odd one out? (a) very salty water (b) a coin (c) honey (d) an ice cube
- 24.True or false: yeast is not needed for the density tower. (a) True (b) False
- 25.🧺 Do we need turmeric powder for the density tower? (a) needed (b) not needed
- 26.True or false: honey is less dense than water. (a) True (b) False
- 27.🧺 Which of these is needed for the density tower? (a) a magnet (b) yeast (c) a battery cell (d) cooking oil
- 28.🍯 Which of these is less dense than water? (a) very salty water (b) honey (c) cooking oil (d) a glass marble
- 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 glass is what we measure. (a) False (b) True
- 30.🍯 Why does honey sink to the bottom of the glass? (a) it is yellow (b) it is the densest (c) it is the stickiest (d) it is the coldest
- 31.⚖️ 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 glass (c) the order of pouring
- 32.True or false: turmeric powder is needed for the density tower. (a) True (b) False
- 33.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) water with food colour (b) a battery cell (c) a tall clear glass (d) cooking oil
- 34.🍯 Is honey denser or less dense than water? (a) denser than water (b) less dense than water
- 35.⚖️ 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 pouring is kept the same. (a) False (b) True
- 36.🔍 Which layer is on top in the honey-water-oil tower? (a) the spoon (b) cooking oil (c) honey (d) coloured water
- 37.⚖️ 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 pouring (b) how much of each liquid (c) the order of the layers
- 38.🍯 Which of these is denser than water? (a) cooking oil (b) an ice cube (c) air (d) a pebble
- 39.🔍 What do you see after pouring honey, water and oil into one glass? (a) one mixed colour (b) the glass gets hot (c) three separate layers (d) bubbles of gas
- 40.🧺 Which of these is needed for the density tower? (a) yeast (b) a magnet (c) water with food colour (d) a mirror
Answer key
- on top of the oil
- turmeric powder
- a mirror
- the order of the layers
- a cork
- needed
- yeast
- a ping-pong ball
- they separate again
- we keep it the same
- a balloon
- not needed
- not needed
- the order of pouring
- False
- we keep it the same
- we measure it
- do not lick the spoon
- spilled oil is slippery
- a pebble
- needed
- less dense than water
- an ice cube
- True
- not needed
- False
- cooking oil
- cooking oil
- False
- it is the densest
- the same glass
- False
- a battery cell
- denser than water
- False
- cooking oil
- how much of each liquid
- a pebble
- three separate layers
- water with food colour
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