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UNIT 1: THE LIVING WORLD: ECOSYSTEMS
Exam Weight: 6-8%
Recommended Case Studies
Recommended YouTube Content
1.1: Introduction to Ecosystems
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1.2: Terrestrial Biomes
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1.3: Aquatic Biomes
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1.4: The Carbon Cycle
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1.5: The Nitrogen Cycle
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1.6: The Phosphorus Cycle
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1.7: The Hydrologic (Water) Cycle
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1.8: Primary Productivity
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1.9: Trophic Levels
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1.10: Energy Flow and the 10% Rule
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1.11: Food Chains and Food Webs
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Recommended Links
UNIT 2: THE LIVING WORLD: BIODIVERSITY
Exam Weight: 6-8%
Recommended YouTube Content
Recommended Case Studies
2.1: Introduction to Biodiversity
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2.2: Ecosystem Services
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2.3: Island Biogeography
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2.4: Ecological Tolerance
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2.5: Natural Disruptions to Ecosystems
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2.6: Adaptations
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2.7: Ecological Succession
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Recommended Links
Interactive: Peppered Moths
HHMI BioInteractive: The Making of the Fittest: Natural Selection and Adaptation
UNIT 3: POPULATION
Recommended YouTube Content
Exam Weight: 10-15%
Recommended Case Studies
3.1: Generalist and Specialist Species
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3.2: K-Selected r-Selected Species
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3.3: Survivorship Curves
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3.4: Carrying Capacity
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3.5: Population Growth and Resource Availability
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3.6: Age Structure Diagrams
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3.7: Total Fertility Rate
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3.8: Human Population Dynamics
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3.9: Demographic Transition
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Recommended Links
YouTube: Human Population Through Time (2023)
UNIT 4: EARTH SYSTEMS AND RESOURCES
Exam Weight: 10-15%
Recommended Case Studies
4.1: Plate Tectonics
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4.2: Soil Formation and Erosion
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4.3: Soil Composition and Properties
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4.4: Earth's Atmosphere
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4.5: Global Wind Patterns
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4.6: Watersheds
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4.7: Solar Radiation and Earth's Seasons
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4.8: Earth's Geography and Climate
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4.9: El Niño and La Niña
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Recommended YouTube Content
Recommended Links
Interactive: Ancient Earth Globe
Interactive: Seasons
Interactive: World Temperature Map
Interactive: World Wind Map
Interactive: El Niño and La Niña
YouTube: Plate Tectonics Explained
Interactive: Raindrop Tracker - River Runner
Interactive: Seismic Explorer
UNIT 5: LAND AND WATER USE
Exam Weight: 10-15%
Recommended Case Studies
5.1: The Tragedy of the Commons
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5.2: Clearcutting
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5.3: The Green Revolution
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5.4: Impacts of Agricultural Practices
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5.5: Irrigation Methods
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5.6: Pest Control Methods
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5.7: Meat Production Methods
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5.8: Impacts of Overfishing
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5.9: Impacts of Mining
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5.10: Impacts of Urbanization
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5.11: Ecological Footprints
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5.12: Introduction to Sustainability
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5.13: Methods to Reduce Urban Runoff
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5.14: Integrated Pest Management
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5.15: Sustainable Agriculture
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5.16: Aquaculture
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5.17: Sustainable Forestry
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Recommended YouTube Content
Recommended Links
Interactive: Ecological Footprint Calculator
Interactive Map: Wilderness Areas of the United States
Interactive: Kiss the Ground: Regenerative Agriculture
YouTube: What is the tragedy of the commons?
YouTube: What is the Blue Revolution?
UNIT 6: ENERGY RESOURCES AND CONSUMPTION
Exam Weight: 10-15%
Recommended Case Studies
6.1: Renewable and Nonrenewable Resources
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6.2: Global Energy Consumption
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6.3: Fuel Types and Uses
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6.4: Distribution of Natural Energy Resources
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6.5: Fossil Fuels
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6.6: Nuclear Power
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6.7: Energy from Biomass
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6.8: Solar Energy
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6.9: Hydroelectric Power
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6.10: Geothermal Energy
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6.11: Hydrogen Fuel Cell
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6.12: Wind Energy
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6.13: Energy Conservation
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Recommended YouTube Content
Recommended Links
Interactive: A Guide to the Energy of the Earth
Video Series: Switch Energy Alliance
Video Series: Department of Energy: Energy 101 Videos
UNIT 7: ATMOSPHERIC POLLUTION
Exam Weight: 7-10%
Recommended Case Studies
7.1: Introduction to Air Pollution
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7.2: Photochemical Smog
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7.3: Thermal Inversion
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7.4: Atmospheric CO2 and Particulates
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7.5: Indoor Air Pollutants
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7.6: Reduction of Air Pollution
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7.7: Acid Rain
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7.8: Noise Pollution
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Recommended YouTube Content
Recommended Links
YouTube: What Ever Happened to Acid Rain?
UNIT 8: AQUATIC AND TERRESTRIAL POLLUTION
Exam Weight: 7-10%
Recommended Case Studies
8.1: Sources of Pollution
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8.2: Human Impacts on Ecosystems
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8.3: Endocrine Disruptors
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8.4: Human Impacts on Wetlands and Mangroves
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8.5: Eutrophication
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8.6: Thermal Pollution
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8.7: Persistent Organic Pollutants (POPs)
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8.8: Bioaccumulation and Biomagnification
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8.9: Solid Waste Disposal
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8.10: Waste Reduction Methods
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8.11: Sewage Treatment
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8.12: Lethal Dose 50%
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8.13: Dose Response Curve
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8.14: Pollution and Human Health
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8.15: Pathogens and Infectious Diseases
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Recommended YouTube Content
Recommended Links
Interactive: Recycle City
YouTube: The Fish on My Plate | FRONTLINE
UNIT 9: GLOBAL CHANGE
Exam Weight: 15-20%
Recommended Case Studies
9.1: Stratospheric Ozone Depletion
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9.2: Reducing Ozone Depletion
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9.3: The Greenhouse Effect
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9.4: Increases in the Greenhouse Gases
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9.5: Global Climate Change
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9.6: Ocean Warming
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9.7: Ocean Acidification
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9.8: Invasive Species
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9.9: Endangered Species
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9.10: Human Impact on Biodiversity
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Recommended YouTube Content
Recommended Links
YouTube: How Whales Change Climate
YouTube: The Threat of Invasive Species
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