CK-12 Foundation
Ck 12: Fifth Grade Science: Earth Science: Use and Conservation of Resources
Looks at how people use natural resources and ways to conserve natural resources in this module. Module reviews over conservation, natural resources, and precycling with explanations, graphs, and pictures.
CK-12 Foundation
Ck 12: Fifth Grade Science: Earth Science: Protecting the Water Supply
Explore the ways to reduce water pollution and strategies for conserving water with this module. The modules reviews over ways water is polluted and how individuals can conserve water.