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Solar Distillation - The NEED Project
www.need.org©2013 The NEED Project P.O. Box 10101, Manassas, VA 20108 1.800.875.5029 www.NEED.org Solar Distillation Grade Levels: 4-9 Background Hydropower is considered a renewable energy source because the water on earth is constantly going through the water cycle because of
Saving Energy at Home and School - The NEED Project
www.need.org©2016 The NEED Project 8408 Kao Circle, Manassas, VA 20110 1.800.875.5029 www.NEED.org 5 Dear Educator: This Saving Energy at Home and School program provides energy-related classroom materials that are correlated to the national and state standards and to local level guidelines.
Frozen Salt - The NEED Project
www.need.org©2013 The NEED Project P.O. Box 10101, Manassas, VA 20108 1.800.875.5029 www.NEED.org Frozen Salt Grade Levels: 7-10 Background Matter comes in three forms: solid ...