Bridge the gaps in your knowledge of bridges. Individuals learn about bridge types by building models. The activity introduces beam bridges, arch bridges, truss bridges, and suspension bridges.

Third graders examine the effects of water pollution by participating in a story. After reading the story, they determine the best way to get rid of the pollution in a river using different objects. In groups, they complete a worksheet...

Students discuss the many different types of animal signs that can be used to identify and track animals. They participate in an hands-on activity in which they examine tracks, trails, homes, territory markings, and even "scat" left by...

Students develop their own smilies and metaphors. They examine writing of the Poet Laureate. They identify philanthropy in quotations of others.

Students participate in an experiment to define a parts-per-billion solution. In this ecology lesson, students select a second substance to create a parts-per-billion solution and observe and record their results. Students work in groups...