Vocab
List the Units of Time on the Geologic Time Scale in order from Smallest to Largest.
Epoch, Period, Era, Eon
Name the Eras in order from Oldest to Youngest.
1. Pre-Cambrian
2. Paleozoic
3. Mesozoic
4. Cenozoic
What event transitioned Earth from the Pre-Cambrian Era to the Paleozoic Era. Explain what it was.
Cambrian Explosion: Was a multiplication or a massive INCREASE in organisms in the oceans.
1. Which organism appeared first on Earth: Fish or Amphibians
2. During which period did life move to land?
3. During which period did Plants move to land?
1. Fish
2. Silurian Period
3. Devonian
What is the Geologic Time Scale used for?
It is a record of the major events and diverse life forms that have appeared on Earth.
What Era take up the longest part of Earth's history? Name/describe 3 things during this Era.
Pre-Cambrian Era:
1. Violent and Volatile due to Asteroids and Comets
2. Comets bring water which forms oceans
3. First single-celled organisms and multi cellular organisms form in oceans.
What was the name of the period where Pangaea formed. What was the name of the Period where Pangaea started to break apart.
Permian. Triassic.
1. During which Era did the first oceans appear?
2. During which Period were there Ice Ages?
1. Pre-Cambrian Era
2. Quaternary Period
What do each of the following words mean:
1. Pre-Cambrian 2. Paleozoic 3. Mesozoic 4. Cenozoic
1. Before Life 2. Early/Ancient Life 3. Middle Life 4. Current Life
Name the Periods of the Mesozoic Era in order.
Triassic, Jurassic, Cretaceous.
In what Era is fossilization rare and Why?
Pre-Cambrian because there are very tiny organisms and all of the organisms are invertebrates. Invertebrates means lacking bone structure; therefore organisms had nothing to fossilize.
In which Period did each of the following organisms FIRST APPEAR:
1. Flowering Plant 2. Mammal 3. Ancient Humans 4. Fish 5. Insects 6. Amphibians 7. Birds
1. Cretaceous 2. Triassic 3. Neogene 4. Ordovician 5. Silurian 6. Devonian 7. Jurassic
Name the periods of the Paleozoic Era in order.
Cambrian, Ordovician, Silurian, Devonian, Carboniferous, Permian
1. What are the names of the two major extinctions?
2. What Period did each one take place in?
3. Name one difference between these two Extinctions.
1. The Great Dying and The K-PG Extinction
2. Permian Period and Cretaceous Period
3. The exact cause (could be volcanoes or asteroid) is unknown for The Great Dying but for the K-PG it is known that an asteroid caused it.
In what Period did each of the following organisms DOMINATE Earth:
1. Insects 2. Mammals 3. Humans 4. Reptiles 5. Grass 6. Fish
1. Carboniferous 2. Paleogene 3. Quaternary 4. Jurassic 5. Paleogene 6. Devonian