Lightning

Front

What is lightning?

Back

A big spark of electricity in the air.

Front

What acts as an insulator between the negative and positive charges in lightning's development?

Back

The atmosphere.

Front

How many electrical charges are there in the atmosphere?

Back

2.

Front

Is lightning the oldest or newest natural phenomenon?

Back

Oldest.

Front

Does the flash of lightning temporarily equalize until the opposite charges build up again?

Back

Yes.

Front

What type of cloud is commonly associated with lightning?

Back

Cumulonimbus clouds.

Front

What is the sound produced by lightning called?

Back

Thunder.

Front

What is the process called when lightning strikes the ground?

Back

A lightning strike.

Front

What is the temperature of a lightning bolt?

Back

About 30,000 degrees Fahrenheit (16,000 degrees Celsius).

Front

What is the main cause of lightning?

Back

The buildup of electrical charges in clouds.