This bundle of science worksheets and puzzles covers most of the 6th, 7th, and 8th grade California Integrated Model Science Standards, the Next Generation Science Standards (NGSS).This science bundle is perfect for helping students review key concepts in a fun, engaging, and interactive way. Packed with a variety of printable worksheets, puzzles, and activities, it supports diverse learning styles and classroom needs. These resources work well for a variety of educational purposes, such as sci