Spread the word about seafloor spreading! Junior geologists prove Albert Wegener right in an activity that combines data analysis and deep ocean exploration. Learners analyze and graph fossil sample data taken from sites along the...

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...

Students apply cause and effect relationships to water pollution in a stream. In this pollution lesson plan students recognize the importance of clean water in their daily lives. Students accompany "Fred the Fish" as he travels down...

Students explore natural selection and its influence on the populations to fine tune traits and characteristics. The acquisition of traits developed out of need is examined through a game played in class.

Students examine a potential asteroid impact site. They describe evidence and theories for extinction events.