Open with a discussion on weather and climate and then explain how tree rings can provide scientists with information about the earth's past climate. Pupils analyze graphics of simulated tree rings from various US locations for the...

Class members explore the carbon cycle in the final installment of the 10-part Discover Your Changing World series. They play a simulation game where they walk through the steps carbon takes as it cycles through the different layers...

Stimulate interest in ocean currents with a simulation. The first installment of a five-part middle school series teaches future oceanographers about the forces that interact to cause ocean currents. A simulation shows how wind and...

Students investigate the lives of trees by examining ring cycles.  In this plant life lesson, students identify the field of study known as dendrochronology and discover its history.  Students investigate a simulated tree ring...

Learners research environmental change and why forests cannot stay the same for long.  In this environmental growth lesson plan, students discuss the life cycle of a tree and examine tree cookies to discover the age of these...

Students examine how scientists determine the age of living and non-living trees. They simulate the role of a tree-ring scientist, crossdating tree-ring samples and determining which sample is the oldest and the age of the samples.

Learners complete this lesson plan before visiting the National Museum of the Pacific War. They examine the patterns and characteristics of landforms, climates, ecosystems and cultures as they interact on areas or regions especially on...