To gear up for Earth Day, join the National Geographic Society on a virtual field trip. In this virtual field trip, dive into learning about what whale history and culture can teach us, how remotely operated vehicles give us an unprecedented view of seamounts in the Galápagos Islands and how eco-journalism inspires change. 1 p.m. Free. blog.education.nationalgeographic.org // @natgeoeducation

Photo by Brian Skerry.