Biology

http://www.biology4kids.com/index.html - Biology research site for 9-12

http://askabiologist.asu.edu/explore/biologists - Biology research site for 9-12

http://www.arkive.org

https://www.exploringnature.org/db/animals

http://www.wildamerica.com

http://www.kidsbiology.com

http://www.ducksters.com/science/biology

https://askabiologist.asu.edu - 

http://gws.ala.org/category/sciences/biology

http://learn.genetics.utah.edu

http://www.oceanfutures.org/learning/kids-cove/creature-feature

http://www.calacademy.org/explore-science

http://www.divediscover.whoi.edu

https://www.epa.gov/climate-research

http://www.actionbioscience.org

http://www.projectwild.org/documents/projectwild.pdf

http://projectwild.org/documents/projectwildaquatic.pdf

http://www.sciencekids.co.nz/lessonplans/biology.html

http://www.sciencekids.co.nz/projects/humanbody.html

http://internet4classrooms.com/science_elem_animals.htm

http://techwebsite.wikispaces.com/science+websites

https://jr.brainpop.com - 

http://www.biologycorner.com

http://mypages.iit.edu/~smile/biolinde.html

http://www.teachnet.com/lesson/science/biology

http://nwf.org - The National Wildlife Federation

Misc

https://www.hcplonline.org - Harford County Public Library

https://jr.brainpop.com

Music

http://www.sfskids.org/discover

http://www.nyphilkids.org/games/main.phtml

http://www.jazzkids.com/index.php

http://www.dariamusic.com

http://www.classicsforkids.com

http://artsalive.ca/en/mus/activitiesgames/index.asp#beethoven

http://lessonplanspage.com/using-rhythm-instruments-with-a-story

http://lessonplanspage.com/musiclaolisteningandrhymegoodsongandideak3-htm - 

http://www.52composers.com

Geometry/Math

http://illuminations.nctm.org/activity.aspx?id=3577

http://www.math-play.com

http://www.exploratorium.edu/geometryplayground

http://mathbitsnotebook.com/Algebra1/Quadratics/QDsongs.html

http://www.mathwords.com/index_geometry.htm

http://mathforum.org/varnelle/kgeo.html

http://mathforum.org/alejandre/circles.html

http://lessonplanspage.com/mathsymmetrybyfoldingshapesandletters1.htm

http://mathforum.org/trscavo/tangrams.html