Font size
WorksheetsFossils & Extinction Generation Genius
Total questions: 1
Worksheet time: 7mins
What are fossils?
Pieces of ancient artifacts found in caves
Traces of recent plants found in forests
Remains of organisms from millions of years ago found in rocks
Fragments of modern animals found in the ocean
How can fossils form when an organism decays?
The organism becomes a fossil instantly
Parts of the organism are slowly replaced by minerals
The organism disappears completely
The organism turns into a mineral
Why are there very few fossils for early life-forms?
They were preserved in museums
They were not interesting to scientists
They were too small to be fossilized
They were destroyed by changes to rocks in the Earth's crust
What is the definition of extinction?
The process of becoming a fossil
The disappearance of a species from the Earth
The evolution of a new species
The migration of a species to a new habitat
How did the dinosaurs become extinct?
Due to a catastrophic event like an asteroid collision
Due to a change in weather patterns
Due to a disease outbreak
Due to a new predator hunting them
What can lead to the extinction of a species when the environment changes?
A decrease in the number of predators
A decrease in the number of diseases
A change in weather patterns
A decrease in the number of competitors
How can a species become extinct if a new, more successful species evolves?
By competing for scarce food or water
By evolving into a new species
By forming an alliance with the new species
By migrating to a new habitat
What do fossils provide evidence for?
The existence of ancient artifacts
The process of natural selection
The formation of rocks
The evolution of species
Why do soft-bodied organisms very rarely form fossils?
Because they are not interesting to scientists
Because they are too small to be fossilized
Because they migrate to new habitats
Because they decay too quickly
What can happen when the conditions needed for decay are absent?
The organism does not decay
The organism slowly decays
The organism disappears completely
The organism turns into a mineral
