El paisaje de la Tierra está compuesto por una amplia variedad de características físicas conocidas como formas de relieve. También se representan las características de agua de la Tierra. La terminología importante incluye: llanura,...

How an 8000V electromagnet can be used to shrink a quarter. The interplay between electric and magnetic forces leads to the Lorentz Force and Faraday’s law of induction which can be used to shrink a quarter, or any other type of metal coin.

This video examines President Andrew Johnson's controversial role during the Reconstruction Era. After Lincoln's death, Johnson's policies, including overturning the "40 acres" order and vetoing civil rights legislation, shaped the...

With the recent passing of Sandra Day O'Connor, we wanted to celebrate her life by releasing this episode. Sandra was the first woman to serve as a U.S. Supreme Court Justice and served from 1981 to 2006. Join us as we learn about her...

Adam Garone has an impressive moustache, and it's for a good cause. A co-founder of Movember, Garone's initiative to raise awareness for men's health -- by having men grow out their moustaches every November -- began as a dare in a bar...

We've talked about AC Circuits, but now it's time to delve into the world of AC Circuits (or Alternating Currents). We’ve talked about how they change voltage, which helps transmit electricity over long distances, but there’s so much...

This video lesson teaches students how to add detail to their informational writing by incorporating stories and examples in their body paragraphs. It emphasizes the importance of being specific and including as many details as possible...