Five engaging science modules address third grade physical science standards for 32 states (NGSS and 12 others). Curriculum units include hands-on activities and projects; labs, stations, and experiments; STEM challenges; inquiry; and more.The following states and Washington, D.C. have adopted Next Generation Science Standards (NGSS): Arkansas, California, Connecticut, Delaware, Hawaii, Illinois, Iowa, Kansas, Kentucky, Maine, Maryland, Michigan, Nevada, New Hampshire, New Jersey, New Mexico, Or