Here is my collection of resources for the Next Generation Science Standards (NGSS). I hope that you find these resources as helpful as I do!
Cal State Northridge's NGSS Guide for CA Science Teachers
TeachEngineering STEM (NGSS aligned) curriculum
San Diego County Office of Education's NGSS Site
Google Tools for Stem Teachers- by CSU Fullerton
The National Science Digital Library- all types of digital resources for teachers
Cognates for science terms: Great for all sorts of English learners!
Collection of Science PowerPoints: When you need to come up with a lecture or are looking for ideas.
Interesting way to take notes: Similar to Cornell notes. It has Hyatt markup notation
Seriously Funny Science: Science activities and fun things to check out
HowtoSmile- Science and Math activities database with links to other web resources
ScienceBox- Science lesson plans created and tested by a teacher for grades K-12
The Annenberg Learning lesson planning and professional development resource for teachers
Various checklists for teachers (and students and parents) via Edutopia
BusyTeacher- teacher-ran website for resources
ScienceSpot- a resource for single-subject science teachers