It is no surprise to find seashells in the sand. Most seashells (1) are found near the sea. But some seashells have been found on high mountaintops. That is a funny place for seashells.(2)How did they get there?
The earth did not (3)always look the way it does today. Once the sea(4) covered mud of the land. Then mountains pushed up. They pushed up (5) through the water. Land from the bottom of the sea became mountaintops. Seashells and fish bones were pushed up,(6) too. They (7) were far away from seawater. They were left high and dry. The seashells and fish bones were covered with soft mud and sand. The mud (8)became hard. It turned to stone. The shapes of the shell and bones were pressed into the stone. These (9) stones are called fossils.Fossils have been found all over (10) our country. Have you ever found one?