Students identify the elements that make up the earth's weather. Begin by having students pretend they are hiking along a mountain ridge. It's been sunny and warm all day, but you see a dark line of clouds moving from the west.

Students simulate the search for water in Mars using simple apparatus. In this space science lesson, students explain how soil temperature affects the cooling of probes. They graph the data collected from the simulation.

Students explore oceanography by researching the great barracuda.  In this animal life instructional activity, students read several vocabulary terms dealing with ocean life and examine a drawing of a barracuda.  Students...