Learn what tides are how the moon and sun cause them why they are important for ...
Learn what ocean currents are how they move water around the world why they are ...
Learn what glaciers are how they form why they are important to Earths water cyc...
Learn what lakes are how they form why they are important for people wildlife an...
Discover how rivers form why they are important to people and nature and how the...
Learn what a watershed is how it collects and moves water why it is important fo...
Discover what aquifers are how they store groundwater and why they are vital for...
Learn what extinct means why animals and plants disappear from Earth explore exa...
Learn about groundwater the fresh water stored beneath Earths surface in soil an...
Discover the hydrosphere the water system of Earth including oceans rivers lakes...
Learn about the asthenosphere the soft hot layer of Earth beneath the lithospher...
Learn about the Richter Scale the tool scientists use to measure earthquake stre...
Learn what aftershocks are why they happen after major earthquakes how scientist...
Learn about the epicenter of an earthquake the point on Earths surface above the...
Discover how bones shells and footprints become fossils from burial to mineral r...
Discover what a paleontologist does how they study fossils to uncover Earths his...
Learn about paleontology the study of fossils and ancient life discover how scie...
Learn about fossils how plants and animals are preserved in rock discover types ...
Learn about metamorphic rocks formed when existing rocks change under heat and p...
Learn about sedimentary rocks formed from layers of sand mud and fossils discove...
Learn about igneous rocks formed from cooled magma or lava discover intrusive an...
Learn about rocks the solid materials that make up Earth discover igneous sedime...
Learn about seismographs the instruments that record earthquake waves and help s...
Learn about convection currents the movement of heat in fluids and the mantle th...
Learn about the Earths mantle the thick layer of hot rock beneath the crust that...
Learn about continental drift, Alfred Wegener’s theory that continents move acro...
Learn about Pangaea, the supercontinent that once joined all land on Earth. Disc...
Learn how Earth’s tectonic plates move, create mountains, earthquakes, and volca...