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The Histor y of Life 141
The History of Life
Before You Read
Use the “What I Know” column to list the things you know about the histor y of life. Then list the
questions you have about the histor y of life in the “What I Want to Find Out” column.
Think about early life on Earth. Describe the physical conditions that needed to be present in
order for life to begin to form.
Science Journal
K W L
What I Know What I Want to Find Out What I Learned