Government:

https://kids.usa.gov/government/index.shtml

http://bensguide.gpo.gov/

http://www.ducksters.com/history/us_government.php

http://www.congressforkids.net/Constitution_threebranches.htm

http://www.socialstudiesforkids.com/subjects/government.htm

https://www.youtube.com/watch?v=-EISWIY9bG8&list=PL6zVUMEy5_ZB45g_K6sxwlgdeNw0iWI91  (School House Rock videos on government)

http://kids.clerk.house.gov/grade-school/

South American Sites:

http://www.ducksters.com/geography/southamerica.php

http://kids.mongabay.com/elementary/central_south_america.html

http://www.kids-world-travel-guide.com/south-america-facts.html

http://www.southamericaliving.com/fun-facts-about-south-america-quiz-for-kids/

http://travel.nationalgeographic.com/travel/continents/south-america/

http://www.factmonster.com/dk/encyclopedia/south-america.html

http://www.timeforkids.com/around-the-world

http://www.learninggamesforkids.com/geography_games/south-america.html

Space Sites:

https://www.nasa.gov/audience/forstudents/k-4/index.html

https://pds.jpl.nasa.gov/planets/

http://science.nationalgeographic.com/science/space/solar-system

http://starchild.gsfc.nasa.gov/docs/StarChild/StarChild.html

http://fourmilab.ch/earthview/vplanet.html

http://school.discoveryeducation.com/schooladventures/spacestation/

http://amazingspace.org/

http://interactivesites.weebly.com/solar-system.html

http://mars.arounder.com/en/sightseeings/mars

http://moon.arounder.com/en/sightseeings/moon

 Europe:

http://www.ducksters.com/geography/europe.php

http://www.themonkeyzone.com/lessons/3rd-grade/europe/

http://www.ipl.org/div/cquest/europe/europe.html

http://europa.eu/kids-corner/index_en.htm

http://www.timeforkids.com/around-the-world

http://kids.nationalgeographic.com/search-results/?q=europe

Weather and tools:

https://scied.ucar.edu/webweather/clouds

http://www.edheads.org/activities/weather/

http://climatekids.nasa.gov/menu/weather-and-climate/

http://www.sciencekids.co.nz/weather.html

http://www.weather.gov/owlie/science_kt

Engineering:

http://www.sciencekids.co.nz/sciencefacts/engineering/typesofengineeringjobs.html

http://discovere.org/discover-engineering/engineering-careers

http://careerplanning.about.com/od/occupations/p/engineer.htm

http://engineering-games.net