A laboratory experiment where students classify matter into a homogenous mixture, heterogeneous mixture, solution, or pure substance. Also students will test for physical and chemical changes.

Students will be able to describe elements and compounds, and explain how mixtures differ from compounds.

Students learn how to find percentage composition, the percentage of a formula mass represented by each element. Percentage composition compares the mass of one part of a substance to the mass of the whole.

Discover all the elements and chemical compounds that are found in the air. They are presented in a chart listing their symbols, molecular weights, and what percent of the atmosphere they each comprise. A set of facts is also provided.

In this lesson, students are introduced to the 5 major types of chemical reactions. Each reaction type will be analyzed and specific examples will be noted. Students will then perform a lab investigation which includes each of the...