Chemistry

Introduce your students to mixtures and compounds with this ready-to-use kit. Students perform separations of three different unknown mixtures using physical separation techniques-magnetic separation, size separation, flotation, solubility behavior, ...

A great, high-quality introductory kit-ideal for teaching the concepts of elements, compounds, and mixtures. Four separate activities are provided. The first paper-and-pencil activity will familiarize students with common element symbols and names. I...

How are elements categorized? In this introductory kit, students will explore the unique physical and chemical properties of eight elements with the goal of classifying them as metals, nonmetals, or metalloids. Students will investigate the color, lu...

Can a dry powder actually contain water molecules? The answer is yes-when the powder in question is a hydrate! Hydrates are pure substances that contain water molecules embedded in their crystal structure. In this experiment, students heat a solid hy...

Classifying matter into mixtures or pure substances hinges on a key question-how is the composition affected by a physical or chemical change? In this experiment, students use both physical and chemical changes to separate a mixture of iron oxide and...

Most substances we use on a daily basis are mixtures-from the air we breathe to the water we drink and the foods we eat. Can the components of a mixture be separated? Students discover how to separate certain mixtures in this two-part, guided-inquiry...