Students explore water properties by conducting a class experiment. In this buoyancy lesson plan, students utilize freshwater, saltwater, plastic cups, hard boiled eggs and food coloring to experiment with the floating capabilities of...

Students study the water cycle and how the sun is an important factor.  In this water cycle lesson plan students investigate how to desalinate water and explore the different densities of fresh versus saltwater.

Young scholars examine an experiment in which 2 types of commercial fish are fed a new type of fish feed and a commercial fish feed which costs ten times as much. They calculate in the fish grow as well with the cheaper fish feed and...

Students observe earth science by examining results from an experiment. In this buoyancy lesson, students practice floating different items in two different liquids and identify why certain objects will float and others sink. Students...

Students create observable layers in water that represent a separation based upon density differences. They model density boundaries using differences in temperature and salinity. They, in groups, perform a meaningful experiment...

In this bias in graphs instructional activity, students examine graphs and explain the data. They determine why the graph is or is not biased. This four-page instructional activity contains approximately 6 problems. Explanations and...