2. ATMOSPHERE
• TROPOSPHERE: people can breathe, there are clouds, rainbows… We live in this layer. It is 17
km above the Earth’s surface.
• STRATOSPHERE: It rises to about 50 km above sea level. It’s where jet planes fly. It contains
the OZONE LAYER. Ozone is very important for the atmosphere because the UV-B rays is
very BAD for people, ozone layer let us keep the Earth warm.
• IONOSPHERE: It has very little air. It’s next to space and there are satellites here.
3. MEASURING THE WEATHER
• A RAIN GAUGE measures precipitation.
• A THERMOMETER measures the temperature in the air.
• An ANEMOMETER tells the speed of the wind.
• A BAROMETER tells us about the air pressure.
• A WEATHER VANE tells us the direction of the wind.
