This entry focuses on the rules for comma use including listing the uses, explaining the rules, and providing detailed examples.

Students investigate physical and chemical properties of several chlorine compounds such as iron chloride, calcium chloride, and sodium chloride. The students will then discover that chlorine is one of the building blocks of matter and...

Find out the basic characteristics and main properties of all matter.

In this activity, students construct models of molecules using marshmallows and gum drops.

[Free Registration/Login Required] Explore the composition of air and learn about the different atoms and molecules that we breathe every day.

[Free Registration/Login may be required to access all resource tools.] Students will be introduced to some of the basic concepts of chemistry.

This lesson will present a basic understanding of the periodic chart of elements and how to predict chemical reactions based on given information. It is 4 of 9 in the series titled "Chemical Reactions."

Through this reading, learners will learn that a substance's properties arise from its molecular structure, not from how it's made (i.e., synthesized by people or found in nature). There is no fundamental difference between natural and...

This reading is an introduction to the great variety of steroids and their many different uses.

An essential element in the ecosystem is phosphorus. Discover the phosphorus cycle, what depends upon it, and how it works.

[Free Registration/Login may be required to access all resource tools.] Covers the significance and functions of carbon.

[Free Registration/Login may be required to access all resource tools.] Group 3-12 elements and their properties.

In this instructional activity, students are introduced to the 5 major types of chemical reactions. Each reaction type will be analyzed and specific examples will be noted. Students will then perform a lab investigation which includes...

This resource aims to promote the use and application of chlorine in a responsible manner. Tends to focus on the many positive applications and downplay and health risks associated with some chlorine compounds, but a good source of...

An informative article from the Wikipedia encyclopedia about Group 16 from the Periodic Table (also known as the Chalcogens). It gives information about their compounds and on the oxidation numbers of the elements.

Kid's learn about the science of the molecules. Tiny chemistry and compounds of atoms and elements make up all matter.

Ten detailed comma rules are found on this page.

Very detailed information on the chemical element Nickel. Discusses its uses, physical properties, and the potential effects of exposure.

This organic chemistry tutorial describes the general class of nitrogen functional group compounds (amines and amides).

This lesson will present a basic understanding of the periodic chart of elements and how to predict chemical reactions based on given information. It is 6 of 9 in the series titled "Chemical Reactions."

This lesson will present a basic understanding of the periodic chart of elements and how to predict chemical reactions based on given information. It is 9 of 9 in the series titled "Chemical Reactions."

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

The glass bottle is a type of measure. It contains the remains of acid compounds and has a stamp to ensure the drugs or chemical materials were not tampered with.

The following tutorial provides an explanation of classification of matter by composition.