TEKS 3.6C: Changes in States of Matter
Changes in State of Matter
About this lesson
Learning Target: I can look at how matter changes (solid, liquid, gas) and tell if it was heated or cooled. Then, I can name the process: melting, freezing, evaporation, or condensation.
Focuses On:
- The processes that happen when matter is heated and when it is cooled.
Builds On:
3.6B:
describe and classify samples of matter as solids, liquids, and gases and demonstrate that solids have a definite shape and that liquids and gases take the shape of their container
2.6B:
conduct a descriptive investigation to explain how physical properties can be changed through processes such as cutting, folding, sanding, melting, or freezing
Next Level:
6.6E:
identify the formation of a new substance by using the evidence of a possible chemical change, including production of a gas, change in thermal energy, production of a precipitate, and color change
Read More:
This lesson is designed to support students' understanding of the processes that occur when matter changes state through heating and cooling through vocabulary, visuals, and real world examples.
The lesson begins by exploring the effects of heating matter, introducing the terms melting and evaporation. It then continues by exploring the effects of cooling matter, introducing the terms condensation and freezing.
This lesson builds on standard 2.6B, where students were introduced to the concepts of melting and freezing without a formal introduction to the states of matter. It is intended to follow standard 3.6B, where students are formally introduced to gases.
Grade 3ScienceTEKS 3.6C