Explore solids, liquids, and gases with hands-on labs, worksheets, and lesson plans that teach matter’s properties and phase changes. This complete 2nd grade NGSS unit covers all PS1-4 standards for Matter and Its Interactions. This unit includes: hands-on 5 E lessonsinteractive notebook flapsa nonfiction articleresponse pagestask cardsintegrated art activitiessorting card center activitiesscavenger huntThis resource is designed to meet the NGSS standards for 2nd grade: 2-PS1-1. Plan and conduc