What is "Economics?"
Economics deals with making, selling, and using (consuming) goods and services. It concerns what you're willing to pay to get something.
GOODS are things you consume, such as paper, gasoline, food, toys, video games, cars, pencils, wood, gold. You can TOUCH a good.
SERVICES are things you pay people to do or provide, such as teaching, national defense/army and navy, police, trash pick-up, house cleaning, plumbing, making things, etc. Services are things people DO, so you can't touch them.