Curated OER
Miracle Planet - Snow Ball Earth 4/5
A snowball earth would stay frozen once frozen; so what melted the ice? A manganese dioxide deposit gives some clue. One scientist focused on volcanic eruptions as contributing more oxygen into the air and warming the earth. This...
Curated OER
Could Just One Degree Change the World?
A one-degree change in the earth's climate does not seem like a problem, but the rate at which our climate is changing is frightening. Of all the recorded temperature changes, our planet is currently warmer than it has ever been. If the...
Curated OER
What is a Hurricane?
Meet hurricane hunters and learn about where hurricanes form and how they occur. Great images, full explanations, and clear narration make this a great clip for learners in grades 3-6. Play this clip prior to or after a lesson on extreme...