In this fun and engaging online lesson, students differentiate between elements and compounds on the most basic level while having fun "encoding" the Periodic Table.

Find out the difference between elements and compounds, the types of compounds, and how to write a compound formula.

Lots of valuable information on nitrogen, its properties and some of its uses and compounds.

A laboratory experiment where students classify matter into a homogenous mixture, heterogeneous mixture, solution, or pure substance. Also students will test for physical and chemical changes.

This entry focuses on the Elements of Sentence Construction including subjects and predicates, phrases and clauses, compound sentence elements, and avoiding fragments, run-ons, and fused sentences.

Students will be able to describe elements and compounds, and explain how mixtures differ from compounds.

Students learn how to find percentage composition, the percentage of a formula mass represented by each element. Percentage composition compares the mass of one part of a substance to the mass of the whole.

A concise summary of manganese, its properties, uses and compounds.

Learn how atoms are the building blocks of all living and nonliving things.

Designed to help students practice the elements of sentence design, these games provide different levels of difficulty for users of all ages. The sentence variety games include: Is This a Compound Sentence, Logging Sentences, Make a...

This resource presents a good summary of the history, properties, sources, uses and handling concerns of manganese. Also contains some basic data.

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

In this lesson, 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 each of the...

Discover all the elements and chemical compounds that are found in the air. They are presented in a chart listing their symbols, molecular weights, and what percent of the atmosphere they each comprise. A set of facts is also provided.