Transcript Dinosaur Fossils By: Dr. Alvin Granowsky fossils  Hardened remains of an animal or plant that lived long ago.  The fossil of the leaf imprint was found.

Dinosaur Fossils
By: Dr. Alvin Granowsky
fossils

Hardened remains of an
animal or plant that
lived long ago.

The fossil of the leaf
imprint was found in
sandstone.
hardened

Became solid

After the lava hardened
we were able to walk on
top of it.
scientists

People who study things
in nature.

Paleontologists are
scientists who study
fossils.
difficult

Something that is not
easy to do.

It would be difficult to
play the piano
backwards.
extinct

No longer living.

Many animals have
become extinct, there
are none of them left in
the world.