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7th Grade Science
Indigenous Knowledge
18. Environmental
18.2 Climate Records, Historical knowledge
Unlocking Earth's Climate History: Proxy Records, Ice Cores, and Ancient Archives
Discover how scientists read Earth's climate past through ice cores, tree rings, coral skeletons, and pollen records to understand natural climate patterns and change.
What You'll Learn
Climate proxies provide indirect evidence of Earth's past conditions.
Ice cores preserve ancient air bubbles extending 800,000 years back.
Dendrochronology uses tree ring widths to reveal past climate conditions.
Multiple proxy records combined produce the most accurate climate reconstructions.
What You'll Practice
1
Students identify and compare different types of climate proxy records.
2
Learners analyze coral, pollen, and ice core data for climate evidence.
3
Questions test knowledge of historical climate events and proxy limitations.
Why This Matters
Understanding climate records equips students to interpret scientific evidence of Earth's past and evaluate the significance of current climate changes with informed, evidence-based reasoning.
This Unit Includes
Practice exercises
Learning resources
Skills
Climate Proxies
Ice Cores
Dendrochronology
Palynology
Isotope Analysis
AK Curriculum Aligned