Introduction to Green Chemistry
STEM Explained
Green chemistry is a field that looks at the sustainability of products and processes designed by people.
How Vehicles Pollute the Air
Backgrounders
Learn how vehicles affect air quality, including their contribution to smog.
Hydrogen Fuel Cell Vehicles
Backgrounders
Learn about vehicles that use hydrogen for fuel.
Shari Forbes (she/her/elle)
Career Profiles
Forensic Scientist
Lighter Than Air Vehicles
Backgrounders
Learn about history and workings of lighter than air vehicles.
Chemical Equations
Backgrounders
Learn about how to write and balance chemical equations.
Types of Chemical Reactions
Backgrounders
Learn about the four main types of chemical reactions.
Evidence of Chemical Change
Backgrounders
Learn how to tell if a chemical reaction has taken place.
Chemical Reactions: Conditions & Speeds
Backgrounders
Learn about the special conditions that let some chemical reactions take place.
Luke Ingersoll
Career Profiles
Occupational Diver
Moles and Molarity: Counting and Chemistry from Donuts to Soap
STEM Explained
To count tiny things like atoms and molecules, scientists use a measurement called the mole.
Boyle's Law
Backgrounders
Learn about the theory of Boyle’s Law and explore examples of Boyle’s Law in everyday life.
Charles' Law and Gay-Lussac's Law
Backgrounders
Learn about the theories of Charles’ Law and Gay-Lussac’s Law and explore examples of these laws in everyday life.
Kinetic Molecular Theory of Gases
Backgrounders
Learn about the Kinetic Molecular Theory of Gases as well as about the units and tools used to measure gases.
Avogadro and the Ideal Gas Law
Backgrounders
Learn about the theory of Avogadro’s Law and the Ideal Gas Law and explore examples in everyday life.