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A Peek Inside the Lesson
This is the real lesson text your child hears, read aloud by a friendly voice.
Air Pressure
Air has weight! All the air above you pushes down: that's air pressure.
A barometer measures air pressure.
Higher up there's less air above you, so the pressure is lower. That's why ears pop in planes!
Weather Fronts
An air mass is a huge body of air with the same temperature and moisture.
A front is where two air masses meet. Weather changes there!
Cold fronts push in fast and cause storms. Warm fronts slide in slowly with steady rain.
Thunderstorms
Thunderstorms grow from warm, wet air rising fast.
Inside the cloud, ice and water bump together and build up electric charge.
Lightning is a giant spark. It heats the air so fast that it booms: thunder!
