Evan-Moor's Science Lessons and Investigations is designed to take a hands-on approach to scientific topics. Fifth graders will appreciate that each of the 14 units utilize the 5E model: Engage, Explore, Explain, Evaluate, and Extend. This teacher's edition also includes answer keys for vocabulary and comprehension activities along with other helpful tools for guiding students through the lessons.Core subject areas and topics include:Life Science:Healthy EcosystemsEnergy in the Food ChainNutrients for SurvivalRecycling Energy in Food WebsEarth Science:Patterns on EarthThe StarsGravityEarth's SpheresWater from All Its SourcesProtecting Our PlanetPhysical Science:Tiny Particles of MatterConservation of MatterIdentifying Matter by PropertiesMaking New Substances