Earth's Early History
Looking into the sky at night we can see the millions of stars which have shared their light with us, Looking out we can only see the past of their existence as millions of years have passed since the light we now see was given off by the stars which shine on us. Similarly, looking down to the Earth the rocks we see are a glimpse into the past of our planet.
|
Without fossils we would not understand the history of life on our planet. Fossils provide insight into the organisms, environments, and geology of life long ago.
|
Fossil Evidence of Change
A scavenger hunt for clues to our planet's past has been underway since we first knew to ask the question. Below are three lessons introducing the topic of the History of Biologic Diversity. Broken into three lessons, this unit describes briefly the history of our planet in geologic time, discusses the geologic time scale, and introduces the idea of cellular development.
Lessons to entice and engage
The History of Life: Fossils provide key evidence for understanding the origin and history of life on Earth.
Earth's Early HistoryDescribe the typical sequence of events in fossilization.
Compare techniques for dating fossils. |
Geologic Time ScaleIdentify and describe major events using the geologic time scale.
|
Origin of Life
Differentiate between spontaneous generation and biogenesis.
Sequence events that lead to cellular life. Describe the endosymbiont theory. |