See Dr. Okhee Lee of NYU discussing the Next Generation Science Standards and opportunities for English Language Learners in the embedded video below. You may also be interested in some of the resources on Stanford University’s Understanding Language site.
As you listen to Dr. Lee and skim the resources on Understanding Language- notice how they are talking about language learning and science learning versus how we may tend to think about these as separate and discreet areas of learning that should be taught independently. Enjoy!