Earth's history
Rock Layers
Fossils
Vocabulary
Fossils 2
100
4.5 billion years old

What is Earth?

100

The youngest fossils are on the...

What is top?

100

Used to be a bone but molecules were replaced by stone.

What are fossils?

100

Someone who studies rocs and bones

Palientologist

100

Sediments cover bones which are replaced molecule by molecule with stone.

What is the fossilization process?   

200

Measuring time in comparison to Earth instead of human history

What is geologic time?

200

The oldest fossils are on the...

What is bottom?

200

A mummy's bones are

What is unfossilised.

200

Looking at something and studing things about it.

What is observing?

200

Bones from last nights fish are...

What is unfossilised

300

Dinosaurs are old in comparison to...

What are humans?

300

Rock that goes through other rock

What is and intrusion?

300

The missing link between humans and apes

What is Lucy?

300

Taking an observation and making assumptions based on that.

What is inferencing?

300

How old fossils get brought to the surface

What is erosion.

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