Here is a link to some new Elementary resources that were updated to include 3 -5th grade units. The K -2 were available a while ago but have been updated. There are a couple units ready for now for the upper grades and the remaining should be ready by December.
Also, if you are new to understanding how to teach the new Science standards there are some great videos that do a good job of explaining more about NGSS and the new pedogogy of teaching science.
Here is the new link! Includes K - 5 and has updated items