North Carolina Standard Course of Study
NC.2.P. Physical Science
Matter, Properties and Change
2.P.2. Understand properties of solids and liquids and the changes they undergo.
2.P.2.1. Give examples of matter that change from a solid to a liquid and from a liquid to a solid by heating and cooling.
2.P.2.2. Compare the amount (volume and weight) of water in a container before and after freezing.
2.P.2.3. Compare what happens to water left in an open container over time as to water left in a closed container.