English National Curriculum - Science
Mission Objectives
Describe how pressure in a liquid increases with depth and density
Calculate pressure in liquids using the correct formula
Explain real-life applications and phenomena involving pressure in liquids
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Words and meanings to learn
upthrust
the upward force exerted by a fluid (liquid or gas) on an object that is submerged in it
mass
amount of matter in an object, measured in kilograms
pressure
the force applied per unit area, measured in pascals (Pa)
float
an object floats in a fluid when the upthrust is equal to or greater than the object's weight
density
mass per unit volume of a substance
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Upthrust practical: Newton meter, 100g masses, 2 elastic bands to hang mass from Newton meter, large beaker, water
Depth and pressure demo: 2 litre clear plastic bottle with holes and filled with water and plugged with blue tack.
Optional - laser pointer.
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