Natural Gas Safety World™

Ohio
SubjectGradeBroad Standard ReferenceStandard CodeStandard NameStandard
Science4Physical Science4.PS.1Electricity, Heat and MatterWhen objects break into smaller pieces, dissolve, or change state, the total amount of matter is conserved. When an object is broken into smaller pieces, when a solid is dissolved in a liquid or when matter changes state (solid, liquid, gas), the total amount of matter remains constant.
Science6Physical Science6.PS.2Matter and MotionChanges of state are explained by a model of matter composed of particles that are in motion. When substances undergo changes of state, atoms change their motion and position.