Is this a Fossil?

bird tracks in snow

no

living pine tree more than 4000 years old

no

oil formed from sea animals of long ago

no

sandstone showing ripple marks from water

no

arrowhead made thousands of years ago

no

thin layer of carbon film from the remains of a plant that lived thousands of years ago

fossil- carbon film

shell-shaped mineral found in rock cavity

fossil- cast

rocklike parts of a species of fish that lived a short time in parts of the world

fossil- index fossil

thin cavity in a rock showing where a shell has decayed

fossil- mold

flesh, fur, and bones of a wooly mammoth preserved in frozen ground

fossil- original remains

insect in amber from a pine tree

fossil- original remains

dinosaur leg bone containing quartz instead of calcium

fossil- permineralized remains

burrows of worms that lived millions of years ago

fossil- trace fossil

dinosaur tracks in rocks

fossil- trace fossils