The Mammoth Lakes area regularly releases warnings to hikers and skiers to be careful because melting snow releases trapped gases from volcanic vents. The 17th lesson in the 20-part series opens with a demonstration of carbon...

Volcanoes are among the most spectacular geological features on the planet. Jump into an exploration of these amazing phenomenon with this multimedia instructional activity series. Working collaboratively in small groups, young...

Take the old baking soda and vinegar volcano to the next level by using it to study repeated lava flows over time, examine geologic features on Earth and Mars, and speculate about some of the formations on Mars.