Glossary

(sī-yun-tist) n. a person who has expert knowledge about a science

A scientist who knows about rocks is a geologist.

(shāps) n. forms, such as circles or squares

People make bread in different shapes.

(sīz-ez) n. how big or small objects are

Fruits can be many different sizes.

(stär-ted) v. came to be

If something has started, it has begun. The teams have not started to fly their kites yet.

(stôr) n. a place where supplies and food are sold

In 1849, many people came to San Francisco to open stores like this one.

(stuh-dē) v. to learn about; to think deeply about

These people study by reading books.

(ser-fes) n. the outer layer

Here you see the oceans and landforms that cover the earth’s surface.