Mon:
Tues: Book C Chapter 6 section 1 vocab write and draw. Vocab is in the book or on the study guide. Quiz on sections one and two Tues.
Although the text tends to present earth history and evolution as fact, I teach that it is one THEORY and if students have different ideologies that is perfectly fine. Please do not hesitate to contact me with any questions.
Core Knowledge for Unit
History of the Earth and Life Forms
A. PALEONTOLOGY
• Fossils as a record of the Earth’s history and past life forms
• How fossils are formed, and types of fossils (mold, cast, trace, true-form)
B. GEOLOGIC TIME
• The age of the earth is about 4.6 billion years, based on geologic evidence and
radioactive dating. Life has existed on earth for more than 3 billion years.
How movements of the earth’s plates have affected the distribution of organisms
• Organizing geologic time: Scientists have organized the earth’s history into four major eras:
· Precambrian Era (earliest forms of life, such as bacteria and blue-green algae; later in
the period, invertebrates such as jellyfish)
· Paleozoic Era (Pangaea; invertebrate life, such as trilobites, early in this era, followed by
development of vertebrates later in the era, including fish; development of insects,
amphibians, and the beginnings of reptiles; development of simple plants, such as
mosses and ferns)
· Mesozoic Era (Pangaea separates into continents; “Age of Reptiles”; dinosaurs,
flowering plants, small mammals and birds)
· Cenozoic (Present) Era (Ice Age; mammoths; gradual development of mammals,
birds and other animals recognizable today; humans; flowering plants, forests,
grasslands)
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