A robot is a machine. It can sense what is around it.
Then it can decide what to do and do it.
Robots often do jobs that are dangerous, hard or boring.
A robot vacuum drives itself around a home. It cleans the floor.
The first factory robot arm went to work in 1961.
The arm was named Unimate. It moved metal castings.
People no longer had to do that dirty, dangerous job.
Robot rovers with wheels drive around on Mars.
A small robot helicopter named Ingenuity flew on Mars.
The word robot comes from a play. It was written long ago.
Words to know
- robot: sensing machine
- sense: find out about
- castings: finished metal pieces
- rovers: wheeled robots
