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