What do I already know?

What are some questions I wonder about?

1. Who discovered electricity?
2. How did they discover it?
3. How is electricity used in our daily lives?
4. How does electricity help us? Animals? The nature?
5. What are some animals who are related to electricity?
6. Does electricity have any connections with chemistry?
7. What are some things made with electricity?
8. How is the power of electricity measured?
9. What are some other power sources other that electricity?