Thunderstorms form when warm, humid air rises rapidly due to heating from the sun's surface or being pushed upward by cold fronts or wind. As the warm air rises and cools, the water vapor condenses to form droplets in clouds. The droplets grow heavy and fall as rain, pulling cool air with it. Negative electric charges build up in the cloud bottom and discharge as lightning through extremely hot air, producing the sound waves we hear as thunder.

1. Thunderstorm
• It begins to from when warm humid air moves upwards rapidly
• The sun heats a place on Earth’s surface ,which , in ,turn , warms the
air mass above it.

3. • Then a cold front may push under the warm air mass ,
or wind may force it upward.
• The higher surrounding air is colder than the rising air
mass.
• As the warm air cools, the water vapor in it condenses
into air droplets, which forms a cloud

4. • Soon the water droplets become heavy enough to fall
as rain .
• The falling rain pulls in cool air with it.
• Winds blow both upward and downward in the cloud
.
• Negative electric charges build up in the bottom of
the cloud.

5. • The charges travel through the air in a lightning
discharge .
• The air along the path of a lightning bolt extremely
hot
• The air along the path of a lightning bolt extremely
hot
• The intense heat makes the air expand so fast that
sound waves are produced .