Audio only

Before you watch/listen:

You are going to watch a presentation about lightning.

There are two main types of lightning: fork lightning and sheet lightning.
Fork lightning is more dangerous because a single bolt of lightning can kill.

Watch the presentation and think about these questions

1. Are many people struck by lightning?
2. Do lightning strikes produce a lot of electricity?
3. Are lightning bolts very long?

Now try doing some exercises here.
Remember that 'strike' is an irregular verb (strike/struck/struck).