Complete the following outline on this article by selecting topics and subtopics from the list; capitalize correctly. Have you ever received a message? It was probably written on paper. A different kind of message was left a long time ago, but no one wrote it. The message was left on stones called fossils.

A fossil is a stone with a special mark or indentation. The mark is the shape of a plant or animal.

Plants and animals fell in a soft clay long, long ago. As the clay hardened into rock, so did the marks of the plants or animals. The fossil is a picture of what the plants and animals looked like long ago.

An animal impression left in stone A plant impression left on a stone
Plants or animals fell in soft clay a long time ago The clay turned to rock
How are fossils made?
Fossils I. What Is a Fossil? A. B. II. A. B. C. The marks of plants or animals also turned t