Welcome to "Crash Course: Kids!" We believe that learning should be exciting and approachable. This grade school science series delves into topics like earth science, physical science, biolo... Read allWelcome to "Crash Course: Kids!" We believe that learning should be exciting and approachable. This grade school science series delves into topics like earth science, physical science, biology, astronomy and much more.Welcome to "Crash Course: Kids!" We believe that learning should be exciting and approachable. This grade school science series delves into topics like earth science, physical science, biology, astronomy and much more.