1.
Very old bones or plant marks in rocks.
2.
Very old objects made by people.
3.
Scientists who study old objects from the past.
4.
How a group of people live.
5.
Scientists who study people and culture.
6.
A long time with no rain.
7.
Water and plants in the desert.
8.
When people or animals move to a new place.
9.
Tools people make to help them.
10.
Land that connects two places.
12.
A very long time ago when people used stone tools.
