Curated OER
Exploring the Deep 3 | Traces of Climate Change
What was our world like 57 million years ago? Due to recent drilling in the North Pole, we can actually tell that the temperature was significantly warmer. What is causing this climate change? Will there be a north pole in 100 years?...
Khan Academy
Khan Academy: Magnetic Fields: Introduction to Magnetism
Learn about magnetism in this introductory video lecture. [10:43]