Broken down over time or to fall apart
What is to decay (rot)
A person who studies life on Earth through fossils
A person who digs things out
What is an excavator
Sand, mud, silt or clay
What is sediment
The process of turning into a fossil
What is fossilization
A steady force upon a surface
What is pressure
A plant or animal that has turned to stone
What is a fossil
The outside of something
What is a surface
What you notice or see
What are observations
To break easily
What is delicate (fragile)
To spread or flow through gradually
What is seeped
To tell about
What is describe
Something that helps to solve a problem or mystery
What is a clue
To dig or remove
What is to excavate
Changes that happen one after another
What is a process
To make it hard
What is to be hardened
To use what you know to come up with an idea
What is an inference
What's around you
What is surrounding
Something that gives us proof or a reason to believe something?
What is evidence
To put things in a sequence, or to organize
What is order
Something that has become hard because minerals have seeped into its cells
What is petrified
The study of events that happened in the past
What is history
A very small amount of something
What are traces
When an entire species disappears from the Earth
What is extinct (extinction)
Marks made from pressings
What are impressions