While this may be true regarding the disciplinary core ideas involved in those standards, it may not be true of the intentions or methods required by the NGSS. The EQuIP rubric from Achieve, Inc. distills the intent of the NGSS quite well in the following statement.
Grade-appropriate elements of the science and engineering practice(s), disciplinary core idea(s), and crosscutting concept(s), work together to support students in three-dimensional learning to make sense of phenomena and/or to design solutions to problems.
The next time you're tempted to say "I already do that," consider the statement above and the "Elkins Principle"** which says the probability that "they already do that" is inversely proportional to the number of times they say they already do that. Let's not focus on what we have done in the past; let's focus on the paradigm shift that will lead to high quality science instruction for all of our students.
**The Elkins Principle was coined by Sean Elkins from Kentucky. @ElkinsSciKy on Twitter.