Amoeba Sisters - Collection of videos focused on high school biology
Bozeman Science - Collection of videos across science topics including anatomy and physiology, chemistry, physics, etc.
CK-12 Exploration Series - Interactive Physics and Chemistry Simulations
CK-12 NGSS Concept Browser - Collection of digital materials and activities that is browsable by NGSS concepts and grade levels.
Collisions Chemistry - Collisions helps students visualize and interact with chemistry concepts through fun and challenging games that integrate with your curriculum.
Crash Course (Youtube) - entertaining and educational videos with playlists including chemistry, anatomy, biology, physics, etc.
HHMI Biointeractive - videos, interactives , case studies and classroom resources based on peer-reviewed science.
New Scientist (Youtube) - an international team of expert journalists brings you the latest innovations and ideas in science and technology.
Nova Education - supports STEM education and engagement nationwide through the creation of resources from NOVA's broadcast and digital productions.
Periodic Videos (Youtube) - all things chemistry. A video about each element on the periodic table. New videos every week about science news, interesting molecules and other stuff from the world of chemistry.
PHET Interactive Simulations - from the University of Colorado - provides dozens of simulations for physics, chemistry and biology. The website also includes a collection of teacher contributed activities, lab experiences, homework assignments and conceptual questions that can be used with the simulations.
PBS Learning Media - standards-aligned videos, interactives, lesson plans, materials can be shared in Google Classroom
PTable - interactive periodic table with different tabs for properties, electrons, isotopes and compounds
Sci-Show (Youtube) - an off shoot of Crash Course with quirkier and/or more news driven topics
Sci-Starter - citizen science project finder. Over 3,000 projects and events are searchable by location, scientific topic, and age level.