Using an interactive demonstration, this educational site provides a glimpse into how illicit drugs disrupt the synapse through unique molecular mechanisms causing the drug user to feel 'high'.

In this interactive students will understand crystals and chemicals in everyday life. The animation takes you through a household and explains various crystallogrophy we use all the time. Objects include light bulbs, items in a bathroom...

Did you ever wonder how or why atoms bond together? This interactive tutorial sheds some light on why bonds form and the difference between ionic and covalent bonds.

An interactive periodic table of elements. Click an element to view a detailed description. Click the flags at the top to choose your language: English, French, Spanish, Dutch, and German.

Explains what intramolecular and intermolecular forces are and the different types for each. Includes lots of examples.

Students learn about the basics of molecules and how they interact with each other. They learn about the idea of polar and non-polar molecules and how they act with other fluids and surfaces. Students acquire a conceptual understanding...

In this tutorial, students learn about ionic and covalent bonds and predict which elements will form which type of bond. Includes interactive exercises as well as videos.

Watch your solution change color as you mix chemicals with water. Then check molarity with the concentration meter. What are all the ways you can change the concentration of your solution? Switch solutes to compare different chemicals...

What determines the concentration of a solution? Learn about the relationships between moles, liters, and molarity by adjusting the amount of solute and solution volume. Change solutes to compare different chemical compounds in water.

What determines the concentration of a solution? Learn about the relationships between moles, liters, and molarity by adjusting the amount of solute and solution volume. Change solutes to compare different chemical compounds in water.

This site offers a wealth of online textbook-related materials that encourage the discovery of science in the world around us. Enter the site to access material on specific topics. Each section contains reading material (complete with...

Gives examples of chemical interactions occurring in the human body, in the world around us, in foods, and in products we use.

This digital textbook covers core physical science concepts and includes interactive features, real world examples, and videos.

The University of Arizona's Biology Project provides background information on toxic materials and the body's responses as well as interactive tutorials with assessment questions and an activity in which students can actually acquire and...

Learn how to balance equations in this tutorial. Tutorial includes videos, interactive activities, and practices.

Complete this interactive tutorial and learn about interpreting the infrared spectrum ("I" "R") that provides information about the functional groups in a molecule. Included are 12 labs and a quiz.

This instructional activity describes chemical synthesis in terms of building or breaking down molecules and discusses the value of chemical synthesis. Students will have a chance to play an interactive game that is analogous to the...

[Free Registration/Login Required] Explore how heat and temperature relate to phase changes.

This lesson teaches students to distinguish between physical and chemical changes. Students will view an interactive slideshow presentation and then conduct experiments to discern physical and chemical changes.

Students can use this resource to interact with the periodic table. Information is available for each element. This is a good source of information for younger students.

An introduction to elements, which explains how they cannot be broken down into smaller substances. Interactive tutorial takes you through the different elements in the periodic table.

Learn how to classify matter into elements, compounds, and mixtures while watching this interactive lesson. Listen to the explanation while you discover how to differentiate between different types of matter.

Practice determining the hybridization for atoms in covalent compounds. Use the interactive scratch pad to work out the problems.

Frequently asked questions about MSDS, such as how to locate MSDS, when were MSDS created, etc. Browse through the table of contents to find the topic you are looking for.