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20 questions
In which time period are we currently living?
Precambrian Time
Paleozoic Era
Mesozoic Era
Cenozoic Era
In what time period did Pangaea, the super continent, appear?
Precambrian
Paleozoic
Mesozoic
Cenozoic
Dinosaurs, small mammals, and birds are found in this time period.
Precambrian
Paleozoic
Mesozoic
Cenozoic
What are fossils that are abundant, easily recognizable, short lived, and widespread called?
Preserved fossils
Index fossils
Imprints
Radioactive dating
Preserved remains of plants and animals from the remote past are called?
Sedimentary rocks
Radioactive dating
Decayed organisms
Fossils
The Law of Superposition states
Younger rocks layers are on top of older rock layers
Fossils are found in sedimentary rocks
Older rock layers are on top of younger rock layers
Absolute age dating
What supereon was the longest, taking up 88% of geologic time?
Precambrian
Paleozoic
Mesozoic
Cenozoic
What does absolute age tell us about a rock layer or fossil?
The 'exact' age of a fossil determined by radiometric dating
The relative age of a fossil determined by radiometric dating
Younger rock layers sit on top of older rock layers
Older rock layers sit on top of younger rock layers
The end of the Mesozoic Era was most likely caused by?
A meteor
Too much oxygen
Lowering sea levels
An ice age
Which fossil would make the best index fossil?
Beetle
Flower
Frog
Fish
What two methods are used for determining the age of rocks and fossils?
Relative and Absolute Dating
Carbon and Water Dating
Sedimentary and Igneous Rocks
Spatial and Layered Dating
Which is the youngest rock layer?
Siltstone
Conglomerate
Mudstone
Limestone
Which time period is the longest?
Precambrian Time
Paleozoic Era
Mesozoic Era
Cenozoic Era
What does relative age tell us about a rock layer or fossil?
The age of one rock layer or fossil compared to another.
The relative age of a fossil determined by radiometric dating
Younger rock layers sit on top of older rock layers
Older rock layers sit on top of younger rock layers
Use relative age dating to put the rock layers in correct order from oldest to youngest.
B, D, A, E, C
C, E, D, A, B
A, C, E, D, B
C, E, D, B, A
When classifying time using the Geologic Time Scale which unit is the largest unit of time?
Period
Eon
Epoch
Era
Earth is thought to be formed ______ years ago?
200 thousand
3 million
4.6 billion
who knows
Put the following units of geological time in order from largest to smallest unit of time.
Epoch, Eon, Era, Period
Epoch, Period, Era, Eon
Eon, Era, Period, Epoch
Period, Eon, Period, Era
A scientist who studies fossil remains in order to study primitive life forms.
Ecologist
Geologist
Zoologist
Palentologist
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