They also cover cost analysis as it relates to product performance. Students assemble models of mountains and create topographic maps. Variables Students engage in scientific inquiry. They observe and compare the outcomes of experiments, identify relationships between independent and dependent variables, graph relationships, and make predictions using the results of their experiments. Mixtures and Solutions Students investigate basic concepts of chemistry - properties of mixtures and solutions, dissolving a solid in a solvent, concentration and saturation of a solution, evidence of chemical reaction, evaporation, and crystal formation.
Students gain experience with laboratory tools and techniques.
Environments Students gain experience with living and nonliving environmental factors in terrestrial and aquatic systems. Organisms maintained in the classroom are used to develop the concepts of environmental factor, range of tolerance, and optimum conditions for survival of populations. Students observe how organisms respond to environmental conditions and how they change their environment.