Climate
Geologic Time Scale
Grab Bag
Divisions of Geologic Time
Fossils
100

What is the difference between climate and weather?

Weather is daily conditions, climate is long term conditions.

100

This time period covers 88% of the geologic time scale and has very few fossils still remaining.

What is Precambrian?

100

Scientists could find a tropical plant fossil somewhere that has a polar climate? TRUE OR FALSE

TRUE

Continents moved. It could have had a warmer climate in the past.

100

When did mammals become the dominant land animals?

What is the cenozoic era?

100

What are fossils that were widely distributed and lasted for a relatively short amount of time called?

What are index fossils?

200

What are three factors that determine the Earth's climate?

HINT: L, A, D

Latitude, altitude, distance from large bodies of water

200
Name the time in Earth's history: Clue #1: 251 million years ago Clue #2: Age of Reptiles
What is the Mesozoic era?
200
How is the geologic time scale of Earth’s history divided?
by major events or changes.
200

When were dinos the dominant land animals?

What is the Mesozoic era?

200
The earliest fossils are of …
One-celled organisms
300
The age of an event or object in relation to other events or objects is called ______________
What is Relative age
300
Name the time in Earth's history: Clue #1: 65 million years ago to today Clue #2: fossils are in the top layer
What is the Cenozoic era?
300

Why is it important for scientist to use both relative and absolute dating?

Because they may not be able to determine the relative age.

300

In what era was Pangea formed?

The Paleozioc Era

300

Why do so few fossils exist from the Precambrian time?

Most of the fossils were destroyed.

400
The oldest sections are shown on the __________, and the recent sections would be on the ________.
What is bottom/top?
400

What time period did mammals first appear?

Mesozoic Era

400

Name three ways that rock layers can be disturbed.

Extrusion, intrusion, fault

400

In what era did lifeforms grown increasingly more complex?

Paleozoic era

400
A well-known fossil group of extinct marine creatures that first appeared in the early Cambrian period.
What is the trilobite?
500

What is the greenhouse effect and how does the air feel inside a greenhouse?

Greenhouse Effect: When earth is warmed from greenhouse gases trapping heat.

The air feels warm, with high humidity. The air inside a greenhouse is warmer than the air outside.

500

What is the purpose of the geologic timescale?

To organize and sequence events about the history of Earth.

500

In what era did Pangea START to break up?

The Mesozoic Era

500

In what era did Pangea move to its present day continent position?

The cenozoic era

500
The soft parts of an organism often decay very quickly. The result is that many fossils..
Only preserve traces of the hard parts of the organism.
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