States of Matter

2nd grade science. Physical states of matter.

Standards:

2-PS1-2 Analyze data obtained from testing different materials to determine which materials have the properties that are best suited for an intended purpose.

“Heating or cooling a substance may cause changes that can be observed. Sometimes these changes are reversible, and sometimes they are not. (2-PS1-4) “

Goals: Students will be able to outline the basic process of a solid turning into a liquid. Students will be able to compare differences in the states of matter.

Materials: Ice cube, ice tray, portable stove, paper, pencils.

Prerequisites: Students (know) before learning that an ice cube is a solid and that water is a liquid.

Procedure: Class begins with an explanation on the changes in states of matter. The teacher will move the students around a central table in which the teacher has placed a portable stove and ice cube(s).The teacher will ask the students what they think will happen when they melt the ice cube. This is the class hypothesis. The teacher will melt the ice cube on the portable stove. Students will observe as the ice melts into a liquid state. Wrap up: students will report on what they observed during the experiment. They will write about how the ice cube changed from a solid state of matter to a liquid one.

Exit ticket: students will write examples of different states of matter in the real world, i.e, their pencils are a solid, their water is a liquid, steam is a gas.

Differentiation: Gifted students will be expected to write at least 4 sentences in their observation report.

Citation: https://www.nj.gov/education/standards/science/Docs/NJSLS-Science_K-5.pdf