Matter: Properties and Reactions
In this module, students learn about the three states of matter and the properties that make them unique. They use a simulation to observe the particle arrangement of solids, liquids, and gases, and explore what happens when heat is added or taken away. Students deepen their understanding of matter as they explore the law of conservation of mass.
Then they investigate new substances as they examine what happens when substances are mixed together. Students apply this knowledge as they explore mechanical properties and their application to engineering. Students follow testing procedures for different materials at centers to investigate methods of testing compressibility, hardness, softness and firmness, and tensile strength.
After students establish an understanding of matter and its properties, they take a deeper look at mechanical testing. Students use the design process to design a testing procedure that demonstrates whether a material has the required mechanical properties.