Science Review

Fossilized stone from the digestive system of a dinosaur.

• Gastrolith
• Coprolite
• Imprint
• Mold

Fossilized dung or waste.

• Gastrolith
• Coprolite
• Imprint
• Mold

Carbonized impression of plants or fish.

• Trace fossil
• Index fossil
• Imprint
• Mold

Remains of animals and plants that lived in a previous geologic time.

• Paleontology
• Geology
• Traces
• Fossils

Hardened tree sap.

• Amber
• Resin
• Hard sap
• Seep

Fossilized remains of an organism found in very dry places.

• Dessication
• Mummification
• Frozen
• Tar seep

Minerals replace organic material.

• Mummification
• Frozen
• Petrification
• Tar seep

Fossilized evidence of past animal movement.

• Index fossil
• Coprolite
• Trace fossil
• Gastrolith

The study of fossils.

• Fossilology
• Geology
• Anthropology
• Paleontology

 Why don’t frozen organisms decay?

• Most bacteria cannot survive freezing temperatures.
• There are no scavengers in places with freezing temperatures.
• Bacteria often survive freezing temperatures
• Fungus does not grow well in freezing temperatures.