Learn how Earth’s long history is reconstructed by observing rock layers, measuring relative and absolute time, and modeling changes that occur over geologic timescales.
What Students Do in Unit 6
In Unit 6, learners investigate Earth’s history by examining rock records, comparing relative ages, and modeling how geologic processes shape the planet over long periods of time.
- Identify evidence used to reconstruct Earth’s past
- Observe and interpret rock layers and fossils
- Compare relative ages using stratigraphic principles
- Examine absolute dating methods and timescales
- Model long-term geologic change
- Use basic technology to organize data and examine geologic time patterns
Technology in Unit 6
Technology in Unit 6 is used to support comparison, correlation, and representation of Earth’s history across long timescales. Learners use simple digital tools to organize evidence, compare timelines, and examine patterns in geologic records.
Technology compresses space and time — learners observe measurable outcomes within operating systems.
- Digital tables to compare relative and absolute ages
- Simple timelines to correlate events across rock records
- Public datasets to examine geologic time patterns
What’s Included in Unit 6
- Guided readings focused on Earth history and geologic time
- Field Bench™ activities examining rock records and sequences
- Geologic time modeling and correlation tasks
- Practice quizzes with unlimited attempts
- One parent-scored module quiz
- Completion checkpoints to confirm mastery
Unit 6 is fully self-paced and parent-guided.
Who Unit 6 Is For
- Learners ready to explore Earth’s history and long-term change
- Students who benefit from clear, step-by-step instruction
- Learners who understand concepts best through guided evidence analysis
- Homeschool families using ESAs, vouchers, or direct pay
Standards Alignment and Credit
Unit 6 aligns with high school Earth & Space Science standards used across U.S. states and territories, including NGSS HS-ESS and state-developed frameworks. Emphasis on geologic time, stratigraphy, and evidence-based reconstruction supports continued progression toward full-course credit.