Unit 2: Thinking Like a Scientist Theme 4: How Does Electricity Work?

power- having energy to do work Students must have a great deal of power to complete each school day.

electricity- energy that makes heat or light The lightening caused the electricity in the house to shut off.

glistening- something that shines or looks wet The lake is glistening in the sun.

crackling- quick, sharp sounds The logs burning in the fire made a crackling sound.

automatic- when something happens by itself without help from a person A garage door with a remote control is automatic.

advance- to move forward or to improve The army is going to advance on the enemy.

appliance- a machine built for a specific purpose A dishwasher was an appliance built to wash dishes.

alternative- another way of doing something An alternative to wearing a raincoat is to use an umbrella.

circuit- a path through which an electric current flows A battery provides energy to an electrical circuit.

benefits- positive things that will make life better or easier There are benefits to paying attention.