Physical Geography
Learn about topics relating to the surface of the earth, including landforms, glaciers, rivers, climate, oceans, earth-sun interaction, hazards, and more.
National Parks in Illinois: Politics, Commerce, and Religious Freedom
History of the Seven Seas
The Link Between Biomes and Climate
Difference Between Hills and Mountains
The Balkans
History of the Supercontinent Pangea
All About the Sahara Desert
Geography of the Ganges River
National Parks in Ohio: Wright Brothers, Mounds, Buffalo Soldiers
Stream Order
Wyoming National Parks: Fossils, Hot Springs, and Monoliths
What Is Physical Geography?
Coldest Capital Cities
National Parks in Georgia: Live Oaks, Civil War Sites, and Beaches
Montana National Parks: Cattle Barons and Volcanic Landscapes
Alaska National Parks: Glacial Landscapes, Explorers, and First People
Arkansas National Parks
New Mexico National Parks: Ancestral Pueblo History, Unique Geology
What Is Daylight Saving Time?
National Parks in Florida: Beaches, Mangrove Swamps, Sea Turtles
Oregon National Parks: Marble Caves, Fossils, Pristine Lakes
What Is the Coriolis Effect?
10 Largest Seas in the World
The World's Northernmost Cities
The Highest Peaks in the United States
Geography of River Deltas
States That Border the Mississippi River
The Largest Lakes in the US by Surface Area
Ring of Fire
Understanding the Gravity Model
The Largest Coral Reefs in the World
The Process and Definition of Geomorphology
Discover Oceania's 14 Countries by Area
Geodesy and the Size and Shape of the Planet Earth
The Great Barrier Reef
Learn About the History and Principles of Plate Tectonics
Ocean Waves: Energy, Movement, and the Coast
Geography of the Pacific Ocean
Countries That Lie on the Equator
Exploring the Earth's Four Spheres
The Gulf Stream
Geography and Facts About the World's 5 Oceans
The 10 Longest Rivers in the World
The Science Behind Fog
Geography of the Mediterranean Sea
Which States Are Split Into Two Time Zones?
Biogeography: Species Distribution
Learn the Names for Bodies of Water
How Many African Countries Are Landlocked?
Solstices and Equinoxes
How to Convert Celsius and Fahrenheit
Geography of the Gulf of Mexico
Layers of the Atmosphere
The Longest Day of the Year
Salt Flats
The Largest Lakes in the World
Mass Wasting and Landslides
10 World's Worst Disasters
Dams and Reservoirs
Basic Geography of Rivers
How the Netherlands Reclaimed Land From the Sea