The earliest recorded observation of electricity was about _____ BCE

In the _________s, Scientists learned how to make electricity.

Lightbulbs allowed businesses and factories to work during the ______________.

Who Invented The Telegraph?

What did the telegraph do?

Electric railways reduces _________________.

what is better for the environment?

Before the invention of electricity, people use _____ _____ to light the house.

We need to follow safety ___________________ when using electricity or else you could suffer electric shocks.

Always ________________ electrical appliances when not using them.

Most people immediately think of ... when they think of Thomas Edison.

People used this electrical appliance for________________

What is this?