Matter and Chemistry

Atoms, elements, the periodic table, states of matter, physical and chemical changes, and how chemists balance reactions.

A science course for grades 6–8. Every lesson explains one big idea in clear, kid-friendly words, shares amazing facts, sets a hands-on activity using everyday materials (with grown-up helper notes) and ends with a short quiz that explains each answer.

What you will learn

1. What Is Matter?
2. Atoms and Elements
3. The Periodic Table
4. States of Matter and Particles
5. Physical and Chemical Changes
6. Compounds and Molecules
7. Chemical Reactions and Conservation of Mass
8. Acids, Bases and pH
9. Chemistry Review: Everyday Chemistry

For parents: lessons take about 25 minutes plus activity time. Activities are designed to be done with an adult helper; read the safety notes together first. You can follow your child’s progress from your parent dashboard.