Fifth graders study environmental changes by examining the annual rings of a cross-section of a tree trunk. They access websites to complete a worksheet on the parts of a tree. They count the annual rings on a tree slice while observing...

Seventh graders design and conduct experiments to determine what environmental factors favor decomposition by soil microbes. They use chunks of carrot for the materials to be decomposed, and their experiments are carried out in plastic...

Students investigate the relationships between certain environmental factors and levels of exposure to sunlight. The variables of location, time of year, and day, and the weather which affect the intensity of the sun are explored in this...