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WorksheetsFossils and Extinction CFA 1
Total questions: 10
Worksheet time: 9mins
Environments have changed over millions of years. Which of these would be BEST for a scientist to study when investigating these environmental changes?
volcanic deposits
wave patterns
fossil records
ocean currents
In the model are rock strata and fossils. The fish fossil is in the first layer of the rock strata, is this the youngest or oldest fossil in these rock strata layers?
Youngest
Oldest
Scientists theorize that the ancient horse on the left is related to the modern horse on the right. The scientists theorize that the horse has gone through many changes over time. How did the scientists conclude that the animal changed over time?
by examining fossil records
by learning about natural selection
by studying deposition of sediments
by observing different types of rock formations
Fossils are the preserved ____ of once living organisms.
plants
adaptations
remains
variations
What statement is true about fossils?
Some living things have not really changed in millions of years.
All living organisms leave behind fossils.
Fossils show that camels never change.
Plant fossils have never changed.
An organism is ______________ if it no longer exits and will never live again on Earth.
rare
plentiful
missing
extinct
Scientist study the ____________________ to learn about the history of life, past environments on Earth, and how different groups of organisms have changed over time.
fossil record
historical record
animal record
Earth record
What type of fossil is this?
Cast fossil
Mold fossil
Petrified fossil
Trace fossil
The end of an era, and the end of life for groups of organisms, is called?
Death
Crossing Over
Mass Extinction
Rainbow Bridge
Which statement is true about the fossil record?
It provides evidence for history of life on Earth
It shows how our climate has remained the same over time
It does not support the theory of evolution
It is a record of all living things
