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In the Western United States, shallow rocky soils and a dry climate often make it hard for new trees to…
In the Western United States, shallow rocky soils and a dry climate often make it hard for new trees to grow in areas that have been harvested of older trees....

In the Western United States, shallow rocky soils and a dry climate often make it hard for new trees to…
In the Western United States, shallow rocky soils and a dry climate often make it hard for new trees to grow in areas that have been harvested of older trees....

After reading the Caves and Karst edition of Natural Inquirer, test your knowledge with a crossword puzzle.
After reading the Caves and Karst edition of Natural Inquirer, test your knowledge with a crossword puzzle.

After reading the Southwestern United States Investi-gator, test your knowledge with a crossword puzzle.
After reading the Southwestern United States Investi-gator, test your knowledge with a crossword puzzle.

Test your knowledge on agriculture, habitats, and drought.
Test your knowledge on agriculture, habitats, and drought.

The scientists in this study were interested in environmental changes occuring in the Southern United States. The scientists were interested…
The scientists in this study were interested in environmental changes occuring in the Southern United States. The scientists were interested in changes occuring over a long time. In particular, the...

In this FACTivity, you will use every-day materials to explore how root size impacts the exchange of materials between roots…
In this FACTivity, you will use every-day materials to explore how root size impacts the exchange of materials between roots and their surrounding environment. Materials: Electronic kitchen scale Clock or...

In this article, scientists explore the different ecosystem services provided by prairie potholes such as soil nutrients, absorbing carbon, and…
In this article, scientists explore the different ecosystem services provided by prairie potholes such as soil nutrients, absorbing carbon, and reducing soil erosion.

In this study, the scientists studied glaciers and their nearby rivers in Alaska. The water coming from glaciers can be…
In this study, the scientists studied glaciers and their nearby rivers in Alaska. The water coming from glaciers can be quite old and contain nutrients, such as carbon, that could...

At the end of the “Standing on the Shoulders of Giants” article, there is a glossary of terms that were…
At the end of the “Standing on the Shoulders of Giants” article, there is a glossary of terms that were used in the article. Pick four words from the glossary...

The scientists in this study were interested in three common periodic changes in sea surface temperatures, called oscillations. In particular,…
The scientists in this study were interested in three common periodic changes in sea surface temperatures, called oscillations. In particular, the scientists wanted to see how wildfires over the past...

Koa is one of the most valued of tropical woods. A particular type of koa tree, called Acacia koa, is…
Koa is one of the most valued of tropical woods. A particular type of koa tree, called Acacia koa, is found in the Hawaiian Islands. The wood from this tree...