Fossils and Soil Flashcard

Front

What are fossils?

Back

harden remains of plants and animals

Front

Over time what replaces bones?

Back

minerals

Front

Dinosaur tracks in mud are examples of trace fossils?

Back

True

Front

Preserved parts are created from mold fossils?

Back

false

Front

What are mold fossils?

Back

shapes of once living things left in sediment when rock formed.

Front

How does cast fossils form?

Back

when mud or minerals later fill mold fossils.

Front

For a fossil to form an animal doesn't have to die and be buried by mud, sand or clay.

Back

false

Front

What are the 3 types of soil?

Back

clay, loam, sand

Front

Which soil has the largest particles? clay, sand, loam

Back

sand

Front

Which soil has the smallest particles?

Back

clay