What are the different simple machines that make a bike?
Levers (brakes, handlebars), Wheels (wheels and gears)
What is this invention? What does it do?
It is a printing press. It makes books, magazines and other papers quickly.
What is this invention? What does it do?
It is a steam engine. It helps transport things using steam energy.
What is this invention? What does it do?
It is the phone. It helps us communicate.
What is this invention? What does it do?
It is a radio. It helps us receive information.
