In this online biology textbook, learn about atoms and molecules as they relate to life. Find out about topics such as electrons and energy, chemical bonding, and chemical reactions.

This site provides an overview of elements and atoms, the building blocks of matter.

Understand the basic structure of atoms and molecules in the Earth's crust.

This interactive periodic table developed for Teachers' Domain provides detailed information about the chemical properties of elements and illustrates the electron configurations that determine those characteristics.

Students will play the "Heavy Element" game to learn about star cycle and the formation of heavy elements in the universe.

Students learn about the periodic table and how pervasive the elements are in our daily lives. After reviewing the table organization and facts about the first 20 elements, they play an element identification game. They also learn that...

Learn how basic elements form molecules to support life.

Students interpret the information given in the periodic table to describe the arrangement of electrons on the energy levels around an atom.

Study the element boron and its chemistry including atomic weight, atom, uses, sources, name, and discovery on this site. Plus properties and characteristics of this element.

Explore the element beryllium on this site. Learn about its chemistry including atomic weight, atom, uses, sources, name, and discovery as well as its properties and characteristics.

Study the properties and characteristics of potassium on this site. Learn about the element potassium and its chemistry including atomic weight, atom, uses, sources, name, and discovery.

Kids learn about the element chromium and its chemistry including atomic weight, atom, uses, sources, name, and discovery on this site. Also discussed is the properties and characteristics of chromium.

This site includes information about phosphorus's atomic weight, atom, uses, sources, name, and discovery. Plus properties and characteristics of phosphorus are discussed.

On this site, learn about chlorine's properties and characteristics. Kids can also learn about its chemistry including atomic weight, atom, uses, sources, name, and discovery.

On this site, students learn about the properties and characteristics of zinc. Kids learn about the element zinc and its chemistry including atomic weight, atom, uses, sources, name, and discovery.

Kids learn about the transition metals of the periodic table. Which elements are in this group. Properties, similarities, and other facts.

Kids learn about the lanthanides and actinides of the periodic table. Find out which elements are in this group. properties, similarities, and other facts on this site.

Kids learn about the science of radioactivity and radiation in chemistry including radioactive decay, types, measurements, half-life, and the dangers.

These notes from a Chemistry 101 class at Indiana University Northwest provide a simple description of atomic symbols and two examples of how to use those symbols in isotope notation.

When two or more atoms combine they give rise to a molecule. A molecule can be made up of many atoms of the same element. There are 112 elements known to man, so can you imagine the different permutations and combinations of molecules...

Students explore the periodic table and learn the basic information given for elements: the name, symbol, atomic number, and atomic mass for each element.

Explains the basic tenets of Dalton's atomic theory.

Kids learn about organic chemistry including the importance of carbon, organic molecules, compounds, hydrocarbons, synthesis, and functional groups.

A site discussing chemical reactions in chemistry including reaction rate, types of reactions, reagents, reactants, catalysts, and inhibitors.