English National Curriculum - Science
Mission Objectives
Describe what atmospheric pressure is
Explain how atmospheric pressure changes with altitude
Interpret data and graphs showing the relationship between altitude and atmospheric pressure
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Words and meanings to learn
altitude
the height of an object or point above sea level or the Earth's surface, often used when talking about aircraft or mountains
height
the vertical distance from a reference point, often the ground or sea level, to a specific point above it
atmosphere
the layer of gases, mainly nitrogen and oxygen, that surrounds the Earth and is held there by gravity
force
a push or pull acting on an object that can cause it to move, stop or change shape; it is measured in newtons (N)
pressure
the amount of force applied per unit area on a surface; it is measured in pascals (Pa)
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Vacuum pump, marshmallows, Magdeburg hemispheres, glass beaker, card, water, empty drinks cans, large tank filled with water.
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