How you learn
What are fossils
How fossils form
Learning/IDing Fossil
Remain of liv.things
100
5 billion years old.
The oldest rocks found on the earth are how old?
100
Prehistoric
What is the name for animals that lived on earth before there were people?
100
Mammoth
What was a woolly elephant found whole, even it's hair and skin?
100
How the earth has changed through the ages.
What can fossils tell us about the earth?
100
Trilobite.
What is the name of an extinct animal that is related to modern day crabs, lobsters, and crayfish?
200
At the bottom.
In layers of rock, the oldest layer is usually found here.
200
Fossil
What is anything left behind by prehistoric life?
200
Freezing
What is a good method of preserving the soft remains of animals?
200
The animal's size, teeth, legs, and toes.
How has the horse changed through the ages?
200
Brachiopods.
What animal looks very much like animals that live today? (hint) You may have used this shell to make your own fossil.
300
Remains of living things.
Carbon is used to find the age of these.
300
Sedimentary rocks
What is the type of rock in which most fossils are found?
300
extinct
What are animals that are no longer found alive on earth called?
300
The history of changes in living things.
What can fossils tell us about living things?
300
Carbon
All common fuels contain this element.
400
Uranium
What is the element used to find the age of rocks?
400
Impressions, molds, and casts.
What are three types of fossils?
400
Tar pits
What preserved the bones of many animals when they became trapped in these because they were thick and sticky?
400
3000 million years ago.
When do scientists believe life began in the ocean?
400
Because they are fuels that come from the remains of living things.
Why are petroleum and coal called fossil fuels?
500
Uranium.
What is element that is a very heavy element and in time, changes to lead?
500
petrify
What is it called when fossils turn into stone causing an exact stone copy?
500
Amber
What is hardened sap that trapped many ancient insects?
500
About 2 million years ago.
When do scientists believe human beings appeared on earth?
500
Wood, coal, natural gas, and petroleum.
What are some common fuels?
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