I WONDER - What Is Hydro Energy?

Humans have utilized hydropower for over 5,000 years, initially to power machinery using water wheels in rivers. This method was crucial for milling grains into flour. It wasn't until after 1880 that hydropower began to be used for generating electricity, marking a significant evolution in its application.

For how many years have humans been utilizing hydropower?

• Over 2,000 years

• Over 3,000 years

• Over 1,000 years

• Over 5,000 years

What was the primary use of hydropower in early civilizations?

• Generating electricity

• Transporting goods

• Irrigating fields

• Powering machinery

How did water wheels contribute to milling processes?

• They cleaned grains before milling

• They generated electricity for mills

• They powered machinery to grind grains

• They transported grains to the mill

What significant change occurred in the use of hydropower after 1880?

• It was used for heating

• It was used to generate electricity

• It was used for transportation

• It was used for irrigation

Before 1880, what was hydropower primarily used for?

• Heating homes

• Lighting streets

• Powering machinery

• Generating electricity