Chemistry

pH scale

Acids and bases

Thermal energy during a chemical reaction

Basics of chemical bonding

Law of conservation of mass

Reading the periodic table of elements

Elements, compounds, and mixtures

Covalent and ionic bonds

Protons, neutrons, and electrons

Chemical reactions

Chemical equations

Chemical formulas

The states of matter (6-8)

Introduction to the atom: Structure

Changing states of matter

Physical and chemical properties

Density