PK Earth and Space
Inspires elementary and middle school learners about key earth and space science topics including earth cycles, ecosystems and biomes, energy and matter, landforms, maps, natural disasters, rocks and minerals, environmental issues, the scientific method, space, water, and weather and climate.
PebbleGo Science
Research information that supports Earth Science, seasons, weather, and space.
Britannica Middle
Find fast answers and homework help. Explore videos and articles on famous people and places. Discover maps, photos, and illustrations for school projects.
World Book Student
Elementary and middle school general reference resource.
Gale In Context: Elementary
Formerly Kids InfoBits A general reference resource for primary and elementary.