Different varieties of Christmas trees provide an interesting way to combine social studies, science, math, and technology. Class members not only research the history of the Christmas tree holiday tradition, they compare and...

Fifteen million children under the age of five die each year due to diseases in their drinking water. Water pollution is the topic of lesson 34 in the series of 36. Scholars, through reading and discussing, study numerous aspects of...

Seventy percent of the air pollution in China is due to car exhaust. Under the umbrella of environmental chemistry, learners extensively explore air pollution. From the makeup of our atmosphere to sources of major air pollutants, classes...

Here's a spelling program that includes 36 lists of 21 words and 20 suggestions for weekly activities. Each list includes common and proper nouns, sight words, academic vocabulary, and words built on a specific Greek roots.

Steel is a man-made alloy or a mixture of metals. Lesson 18 in this series of 36 focuses on metals and their extraction from Earth. Individuals read about, discuss, and answer questions after learning how people find most metals, the...

[Free Registration/Login may be required to access all resource tools.] Summarizes the key points about the evolution of agriculture and how it has impacted human population growth. Includes a few questions to check for understanding.

Article discusses importance of Photosynthesis in terms of food, energy, and environment. Relates process to human needs.

Get an overview of soil conservation to avoid soil loss.

An introduction to biomes and how agriculture is considered in studying large ecosystems of the world. Text is well written and easy to follow with links, charts, and pictures.

Information as to how a plant protects itself from bugs and other harsh elements that seek to injure it. Also provides links for users to learn more about agricultural research for further study.

Excellent resource for studying about the economy, resources, infrastructure, exports, and jobs in Costa Rica.

This project studied the "prehistoric food systems" of the Moche people in order to further understanding of the civilization and its innovations. Learn about the farming advances, eating habits, and daily life of these ancient people of...

Breaks down East German economy from 1984 into eight categories: Gross National Product (GNP), energy and mining, industry, agriculture, foreign trade, balance of trade, exchange rate, and fiscal policy. Each category contains a succinct...