Students use simple drawings of compounds to match formulas, to count atoms and to sort the atoms and elements in each compound.
As an extension, the worksheet is ideal to discuss how valence electrons are used in bonding. In the Going Further section, students match the compound names to the compound drawings and then, draw similar practice compounds to name.
For sixth grade students, this worksheet teaches simple matching of compounds and formulas. Teachers can use it to discuss the difference between elements and compounds as student see concretely how a compound is constructed of atoms of the elements.
For eighth grade students, this worksheet quickly teaches students to count atoms and elements in a concrete manner. They can color each atom of each element with a color key (as decided on by the teacher) or match the atoms to physical items, like construction paper circles.
For high school, this can be used as a quick homework review or to teach basic compound naming.
This important precursor to teaching students to balance chemical equations has been classroom tested by Kirksa's Corner for over a decade. It helps make an abstract concept easy.