1
It is a person who solves mathematical problems.
2
It is a person who studies the world and carry out lots of experiments. Sometime, he or she works in a laboratory.
3
It is a scientist who studies the plants.
4
It is a person who design and build bridges, house or buildings.
5
It is a person who plays a musical instruments.
6
It is an artist who makes sculptures.
7
It is a person who writes books or stories.
