Chapter 1
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“Big history” studies _
Big bang to present
During first few seconds of time, protons and electrons combined to give (2)
Hydrogen Helium
4.7 billion years ago, _ caused region around our star create our solar system
Gravitational forces
Earth was located Goldilocks to allow spontaneous formation of _
Molecules
Earth was located Goldilocks to allow assemblies of _
Molecules
Earth was located Goldilocks to allow replication of _
Molecular assemblies (and so on)
Earliest living things appeared _ years ago
4 billion
Earliest ape like animals _ years ago
10 million
Modern humans less than _ years ago
100k
Chemists call their discipline _
The Central Science
Central science because of its relationship to _ on one side and _ on other
Physics Biology
_ central to chemistry
Organic chemistry