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WorksheetsFOSSILS
Total questions: 20
Worksheet time: 10mins
The preserved remains or traces of organisms that lived in the past are ________________
Fossils
Extinct
Gone forever
Artifacts
The study of fossils has allowed scientists to describe future environments and they history of our earth.
True
False
The ____________ age of a rock is its age compared to other rocks
Actual
Relative
Estimated
Radioactive
Geologists use ________________ dating to determine the ______________ ages of rocks.
radioactive ; absolute
radioactive ; relative
radioactive ; predicted
radioactive ; superposition
What does it mean when a fossil is petrified?
The fossil was preserved in ice
The fossil was made in the water
Minerals replace all or part of an organism
The fossil was preserved with chemicals
True or False.... The Law of Superposition states that rocks closest to the surface of the Earth are the youngest
True
False
Choose the best answer : Paleontologists are scientists who study __________________ from Earth's history.
Extinct animals
Ocean currents
Rocks
Fossils
What radioactive element is used to determine the age of remains of organisms?
Carbon16
Carbon 18
Carbon 14
Carbon 12
What kind of fossil best describes these two examples : Footprints and Trails
Mold
Trace
Cast
True or False... Geologists divide Earth's long history into smaller units that make up the Geological time Scale
True
False
What type of rock do fossils normally occur?
Metamorphic
Igneous
Sedimentary
The law of superposition helps determine the ______________ age of a rock layer
Absolute
Actual
Predicted
Relative
What is an UNCONFORMITY
A gap in the geological record where some rock layers have been lost because lack of geologists
A gap in the geological record where some rock layers have been lost because of erosion
A missing chapter in the geological time scale
What is the best definition for a catastrophic event that wipes out a large majority of life?
Mass lack of resources
Mass extinction
Mass endangerment
Mass overpopulation
What is a smaller division of time within an era?
Period
Eon
Ages
Epochs
True or False..... the absolute age of a rock is the number of years ago that the rock layer formed
True
False
Which one of these DOES NOT belong?
Era
Eon
Period
Decade
True or False... Scientists cannot determine how the earth's climate has changed over time by studying fossils.
True
False
What kind of scientists study fossils?
Paleontologists
Geologists
Botanists
Phlebotomists
What class is your favorite?
Math
SCIENCE
History
Language Arts
