Plate Boundaries: Pull Apart, Meet, or Slide Past
Where two tectonic plates meet, dramatic things happen: mountains rise, oceans widen, volcanoes erupt, and earthquakes strike. These meeting places are called plate boundaries, and there are just three kinds. Learning them explains most of Earth’s major geologic activity and is a reliable test topic. This lesson covers the three types of plate boundaries and […]
Continental Drift, Plates, and the Evidence
Look at a world map and you might notice that South America and Africa seem to fit together like puzzle pieces. That observation launched one of the biggest ideas in earth science: the continents move. Understanding continental drift and the evidence for it explains why Earth’s surface looks the way it does. This lesson covers […]
