In this HIV and AIDS worksheet, students answer ten multiple choice questions about the populations most affected by HIV and AIDS, the costs to aid people with the disease and the number of people affected in 1998 by the disease.

Studies show that obesity is now a global problem. But how are researchers measuring obesity? Young scientists investigate the myriad of methods for measuring body fat through a presentation. From hands-on to high-tech, viewers learn...

Approximately 93 percent of the individual reefs in the Great Barrier Reef suffer from coral bleaching. Scholars learn how scientists monitor coral bleaching around the world as part of a larger series. They use actual data to answer...

In this vegetarianism and cancer worksheet, students read the article, answer true and false questions, complete synonym matching, complete phrase matching, complete a gap fill, answer short answer questions, answer discussion questions,...

In this medicine worksheet, students read the article, answer true and false questions, complete synonym matching, complete phrase matching, complete a gap fill, answer short answer questions, answer discussion questions, write, and more...

In this how clean is the air in your community worksheet, students assess the air quality, identify polluters, create an action plan, develop a presentation, evaluate it.  This page has many links to helpful Internet resources.

For this birds worksheet, students choose the correct words to complete sentences about birds and complete a word search. Students complete 2 activities.

In this food history activity, students read the information about the history of food and salads. Students select the correct answer for the 6 related questions.

In this online interactive philosophy worksheet, students respond to 10 short answer and essay questions about Aristotle. Students may check some of their answers on the interactive worksheet.