Clarification Statement - S.5.PS.1.2.CS:
Examples of reactions or changes could include phase changes, dissolving, and mixing that form new substances. Assume that reactions with any gas production are conducted in a closed system.

Assessment Boundary - S.5.PS.1.2.AB:
Assessment does not include distinguishing mass and weight.

Science and Engineering Practices - 3-5.SEP5.1:
Measure and graph quantities such as weight to address scientific and engineering questions and problems

Disciplinary Core Ideas - S.5.PS.1.2.DCI:
PS1.A: Structure and Properties of Matter •(NYSED) The total amount of matter is conserved when it changes form, even in transitions in which it seems to vanish. PS1.B: Chemical Reactions •No matter what reaction or change in properties occurs, the total weight of the substances does not change. (Boundary: Mass and weight are not distinguished at this grade level.)

Crosscutting Concepts - CC7.3:
Standard units are used to measure and describe physical quantities such as weight, time, temperature, and volume.