This overview of lipids explores triglycerides, saturated and unsaturated fat, steroids, waxes, and the role of lipids in energy.

This overview of liquids explores what a liquid is and how matter becomes changes into a liquid.

Here you can find some great information about the 12th element in the periodic table, "magnesium." Content focuses on magnesium's electrons, where you can find magnesium in nature and in the home, and how magnesium combines with other elements.

"Matter is everything." So begins this comprehensive website on the physical and chemical properties of matter in its four main states: solids, liquids, gases, and plasmas. The text is large and easy-to-read. Students will enjoy the downloads, activities, and quizzes at this site.

This site provides a general overview of the metals in the periodic table. Content explores the different types of metals, and how you can identify a metal.

This informative site contains basic information, offered in a straightforward way, on what constitutes a mixture. Examples and illustrations are part of this site.

Here you can find some great information about the 10th element in the periodic table, "neon." Content focuses on neon's electrons, where you can find neon in nature and in the home, and how neon combines with other elements.

Here you can find some great information about the 7th element in the periodic table, "nitrogen." Content focuses on nitrogen's electrons, where you can find nitrogen in nature and in the home, and how nitrogen combines with other elements.

Chem4Kids! looks at nucleic acids and its "five easy parts": uracil, cytosine, thymine, adenine, and guanine.

Here you can find some great information about the 15th element in the periodic table, "phosphorus." Content focuses on phosphorus' electrons, where you can find phosphorus in nature and in the home, and how phosphorus combines with other elements.

Here you can learn all about plasma. Explore what plasma is, its basic characteristics, and how plasma is created.

This Chem4Kids.com site explores the rate of reactions. Content focuses on forces that change the speed of reactions, and measuring rates.

This site provides a detailed overview of chemical reactions. Content explores what a reaction is, as well as different types of reactions, reaction rates, how to measure compounds to create a reaction, and "stuff" you can add to a reaction to speed it up or slow it down.

Here you can find some great information about the 14th element in the periodic table, "silicon." Content focuses on silicon's electrons, where you can find silicon in nature and in the home, and how silicon combines with other elements.

Here at Chem4Kids you can find some great information about the 11th element in the periodic table, "sodium." Content focuses on sodium's electrons, where you can find sodium in nature and in the home, and how sodium combines with other elements.

Chem4Kids provides an overview of the solid state of matter that explores the characteristics of solids as well as how matter in other states becomes a solid.

This site provides a great overview of stoichiometry, the part of chemistry that studies amounts of substances that are involved in reactions. Content focuses on what you measure, and includes two examples.

Here you can find some great information about the 16th element in the periodic table, "sulfur." Content focuses on sulfur's electrons, where you can find sulfur in nature and in the home, and how sulfur combines with other elements.

Here you can learn all about carbohydrates! Content explores what carbohydrates are used for in the body, as well as the different types: saccharides, regular sugars, and polysaccharides.

Chem4Kids! provides an overview of the symbols representing numerical values in chemical equations. Each symbol is defined and described.