Multnomah County Library has a free streaming service called Kanopy, which can be used on laptops, TVs, phones or tablets. Use the Browse tab to search for films, series, or shows by topic. There is an environmental science section, K-12 education programs, and even teacher development programs.
Northwest Center for Alternatives to Pesticides (time varies)
Learn about pollinators, implication of pesticides, farm-to-table food supply chain challenges and other topics. Each video is relatively short and can accompany class discussions, written responses, or independent research projects.
Slough School Online
The Columbia Slough Watershed Council's Slough School has a wide variety of videos and online resources on watersheds, water chemistry, native plants, soils. macroinvertebrates and much more!
Skype a Scientist – Invite a Scientist into your online classroom to talk about their work and answer question from students. Choose a scientist who studies whatever topic you are investigating with your students.
MESD Outdoor School has pre- and post-visit lesson plan ideas, labs, discussion prompts, and more. Great resource for 5th-8th grade students.