The three-chart set covers key concepts related to the study of Matter. Each 18” x 12” chart is double-sided and laminated. One side provides an illustrated overview of the topic, while the reverse features “write-on/wipe-off” graphic organizers, problem-based questions and other review activities. The Matter & Interactions Bulletin Board Chart Set includes the following charts: Matter & Its Properties Properties of Atoms Solids, Liquids & Gases.