Hot and Cold Changes

Temperature Changes in Matter

Grades 2-3

Heating and cooling matter causes changes that can be reversible or irreversible.

• With guidance, plan and conduct an investigation in collaboration with peers.

• Make observations (firsthand or from media) and/or measurements to collect data that can be used to make comparisons.

• Make observations (firsthand or from media) and/or measurements of a proposed object or tool or solution to determine if it solves a problem or meets a goal.

• Use observations (firsthand or from media) to describe patterns and/or relationships in the natural and designed world(s) in order to answer scientific questions and solve problems.

• Analyze data from tests of an object or tool to determine if it works as intended.

• Describe how specific images (e.g., a diagram showing how a machine works) support a scientific or engineering idea.

• Communicate information or design ideas and/or solutions with others in oral and/or written forms using models, drawings, writing, or numbers that provide detail about scientific ideas, practices, and/or design ideas.

• Students learn that events have causes that generate observable patterns. They design simple tests to gather evidence to support or refute their own ideas about causes.

• Heating and cooling substances cause changes that are sometimes reversible and sometimes not.