In this U.S. history trivia worksheet, students answer twenty multiple choice questions based on their knowledge of U.S. history. This is an interactive worksheet.

In this biology lesson, students complete a crossword puzzle with 35 questions about viruses. They identify the different types of viruses and the diseases they bring.

Students describe life in the Virginia colony. They explain how money, barter, and credit were used. Students simulate trading items among classmates. Students compare/contrast credit and trade.

Second graders brainstorm how they care about certain people in their lives. They discuss how they take care of those people or pets. They draw a picture of the people who care about them.

Read through this printable version of a handout discussing Economics and the American Revolution. There are key terms and facts for young scholars to focus on. This case study illustrates economic principles that remain important today....

Students are given a fictitious case study to read in preparation for the class. This lesson can also be readily adapted for a role-playing classroom exercise. They discuss the ethical issues of the case.

Young scholars listen to explanations of what can go wrong in pregnancy and why problems arise. They complete worksheets and define terminology.

Learners explore how green plants help improve air quality. They read an article and discuss the importance of air quality and its effects on the human body. They investigate by connecting hose to the top of a Bell jar and to a funnel....

The Oral Cancer Information Center talks about how smoking will put someone at greater risk for oral cancer.

This article provides information on smokeless tobacco, and provides several tips on how to stop. Here, you can read responses to brief questions about smokeless tobacco, it dangers, and the difficulties of quitting using it. Learn how...

The Encyclopedia of Life presents this in-depth overview of Tobacco (Nicotiana tabacum), including their habitats, size, conservation status, and much more. Images of this species and maps of its global distribution can also be found here.

This interactive module will help you understand the basic anatomy and physiology of the respiratory organs, primarily the lungs. You will learn about lung development, respiratory toxicology, secondhand tobacco smoke, asthma, and lung...

This website explains why Virginia needed laborers, why it led to the use of African labor and how it was justified by Christians. Hyperlinks to related topics on the site.

Here is a gold mine of information about advertising from 1867 to 1918 in the western part of the United States, particularly the Pacific Northwest. This collection of 450 ads shows social, cultural, and economic trends during this time...

A great description and explanation of the exchange that took place between the Old World and New World as a result of European exploration. Find examples of plants, animals, and diseases that were traded as a result of exploration and...

Learn why people smoke and about the effects of smoking.

[Free Registration/Login may be required to access all resource tools.] Describes the discovery of viruses and two hypotheses for the origin of viruses.

Use these practice questions on drug abuse and addiction to review for the NCLEX-RN test.

Home page for the Agricultural Marketing Service of the USDA, links to product and commodity marketing information and job opportunities.

A map from 1904 of Missouri showing the capital of Jefferson City, major cities and towns, railroads, and rivers. An inset map details St. Louis. "Missouri - Organized as a Territory in 1812; admitted to the statehood in 1821. Its lead...

This site discusses, through a series of questions and answers, the benefits of smoking cessation. Also provides links to definitions of many of the terms used throughout the site.