WorksheetsPatterns of Life and Change on Earth
Total questions: 28
Worksheet time: 9mins
The gradual change in living things over time is..
transition
evolution
age
revolution
Most fossils form when living things die and are buried by _______________ that hardens into rock over time.
sediment
people
cement
ants
What type of fossils provide evidence of the activities of ancient organisms?
molds and casts
petrified fossils
trace fossils
carbon films
An organism is ______________ if it no longer exits and will never live again on Earth.
rare
extinct
plentiful
missing
A ______________________ is a scientist who studies fossils.
biologist
chemist
paleontologist
astronomer
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
animal record
historical record
Earth record
If a scientist found a fish fossil in the desert, what can they infer?
An animal ate the fish.
The water covered the area long ago.
Today's fish looks the same
The fish is endangered.
What needs to happen FIRST for a fossil to form?
A plant or animal must be covered by sediment.
A plant or animal must die and decompose.
Sediments fill a a mold to form a cast.
An earthquake shifts the land up.
What can fossils tell us about the past? (check all that apply)
Which organisms used to live on Earth and what they looked like
How the environment has changed
How organisms alive today have changed and adapted over time
How to make a taco
What does the Law of Superposition tell us?
The most superior rock is the top layer of rock
The oldest rock is the most top layer of rock
The youngest rock is the most top layer of rock
The strongest rock is the most top layer of rock
Which of these can often cause extinction of a species? Check all that apply.
Disease
Over-hunting
Invasive Species
Loss of habitat
Lack of food resources
The period of geologic time when the biodiversity of life on the planet increased dramatically was
Jurassic
Triassic
Permian
Cambrian
There have been how many major extinction events on planet Earth?
3
4
5
2
When did this creature live?
Triassic-Jurassic
Jurassic-Silurian
Cretaceous-Tertiary
Eocene-Oligocene
The period when trilobites and eurypterids appeared was the
Hadean
Cambrian
Holocene
Jurassic
Which evidence show patterns of change in organisms from early life to modern life?
homologous structures
transitional fossils
vestigial structures
proteins
When scientists discuss the Sixth Extinction, they are referring to which pattern in the rate of extinction?
an increased rate caused by human activity
an increased rate caused by volcanic activity
a fluctuating rate caused by human activity
a fluctuating rate caused by volcanic activity
What classifies a mass extinction?
Only 5% of species go extinct.
Massive flooding due to hurricanes.
Happens in a relatively short period of time and is global
There have never been any mass extinctions on Earth.
Which of the following mass extinctions occurred first?
Ordovician-Silurian
End Permian
Late Devonian
Cambrian
