GED® Science: Environmental Science & Human Impact
Explore how living things interact with each other and the planet — and what happens when humans change those interactions. This course covers ecosystems, food webs, energy flow, biodiversity, climate change, pollution, natural resources, and conservation. Every lesson uses real-world examples, labeled diagrams, misconception warnings, and GED®-style practice questions with full explanations. No prior science background required.
📚 Course Curriculum
An ecosystem is all the living and nonliving things in an area, interacting together. Understanding its parts is the foundation of all environmental science. [[figure:ecosystem_levels …
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Energy captured by producers flows through an ecosystem via feeding relationships. Tracing this flow is a core GED® Science skill. [[figure:food_web A food web shows …
Open trial session →Biodiversity is the variety of life in an area — species diversity, genetic diversity, and ecosystem diversity. More biodiversity generally means a more stable ecosystem. …
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Humans are now the single largest driver of ecosystem change on Earth. Understanding these impacts is central to the GED® Science test. [[figure:carbon_cycle The carbon …
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Climate is the long-term pattern of weather in a region. Climate change refers to the shift in global climate patterns, primarily caused by the increase …
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Pollution is the introduction of harmful substances into the environment. Understanding types, sources, and effects is a frequent GED® topic. Types of pollution:. Air pollution …
Open trial session →Conservation is the careful management of natural resources to prevent depletion. Sustainability means meeting today's needs without preventing future generations from meeting theirs — the …
Open trial session →Course Syllabus
This self-paced GED® Science course follows a 7-lesson sequence. Work through the modules in order so that each skill supports the next.
Course sequence
Module 1 - Lessons 1-4
- Ecosystems: Components and Organization
- Food Webs and Energy Flow
- Biodiversity and Ecological Relationships
- Human Impact on Ecosystems
Module 2 - Lessons 5-7
- Climate Change and the Greenhouse Effect
- Pollution and Natural Resources
- Conservation, Sustainability & Reading Environmental Data
Practice and completion
- Use worked examples and lesson practice to check understanding after each module.
- Review incorrect answers, explain the correction, and repeat weak skills.
- Complete the available mixed or final course practice to demonstrate readiness.
Course Outcomes
By the end of this course, learners will be able to:
- Explain the key scientific ideas and vocabulary in Ecosystems: Components and Organization.
- Interpret observations, data, models, or evidence related to Biodiversity and Ecological Relationships.
- Apply scientific reasoning to questions involving Human Impact on Ecosystems.
- Evaluate explanations and identify common errors about Climate Change and the Greenhouse Effect.
- Connect Conservation, Sustainability & Reading Environmental Data with other course concepts in mixed practice.
- Use feedback and answer explanations to diagnose and correct mistakes.
- Complete mixed, exam-style practice with clearer reasoning and greater independence.
📝 Practice Questions
31 interactive questions with instant feedback and explanations.
Enroll for free to unlock the full practice bank after the trial sessions.