https://www.khanacademy.org/test-prep/sat

https://www.prepfactory.com/

https://collegereadiness.collegeboard.org/sat/practice/full-length-practice-tests

https://uniontestprep.com/sat-exam/practice-test

https://edpuzzle.com/home

https://quizlet.com/guide

https://kahoot.com/

https://www.hippocampus.org/

https://www.ck12.org/browse/

https://www.cram.com/

https://www.coursera.org/

https://www.khanacademy.org/

https://loc.gov/

https://www.ck12.org/student/

https://artsandculture.google.com/

https://www.teach-nology.com/worksheets/time_savers/studyskills/

https://ca.pbslearningmedia.org/

https://www.studyblue.com/

https://habitica.com/static/home

https://www.khanacademy.org/

https://www.ixl.com/math/algebra-1 (not free - costs $$)

h ttps://www.ixl.com/math/geometry  (not free - costs $$)

https://www.ixl.com/math/algebra-2  (not free - costs $$)

https://www.ixl.com/math/precalculus  (not free - costs $$)

https://www.ixl.com/math/calculus (not free - costs $$)

https://www.hoodamath.com/games/highschool.html

http://www.xpmath.com/forums/arcade.php?do=play&gameid=55

https://www.virtualnerd.com/

https://phet.colorado.edu/en/simulations/category/math

https://www.desmos.com/

https://www.freemathhelp.com/

https://www.calculatorsoup.com/calculators/algebra/squareroots.php  (Square Root calculator)

https://www.geogebra.org/

Geometry "Cheat Sheet" of Theorems

http://phet.colorado.edu/sims/html/balancing-chemical-equations/latest/balancing-chemical-equations_en.html

https://www.acs.org/content/acs/en/education/students/highschool/chemistryclubs/activities/chemistry-games.html

https://www.biomanbio.com/

https://askabiologist.asu.edu/games-and-simulations

https://www.biointeractive.org/classroom-resources/earthviewer

https://www.mendeley.com/?interaction_required=true

https://www.khanacademy.org/science

http://www.openscience.org/~chrisfen/Pages/Programs/theChemicalTouch.html

https://www.nsf.gov/news/classroom/earth-environ.jsp

https://www.nih.gov/research-training/science-education#students

https://learninglab.si.edu/

https://www.sciencebuddies.org/

https://www.sheppardsoftware.com

https://online.seterra.com

https://world-geography-games.com/index.html

https://geoguessr.com/ (not free - costs $$)

http://www.playmapscube.com/

https://school.bighistoryproject.com/bhplive

https://www.icivics.org/

https://www.annenbergclassroom.org/

https://www.archives.gov/

https://historyexplorer.si.edu/

https://www.facinghistory.org/

https://nmaahc.si.edu/

https://nmaahc.si.edu/

https://dp.la/

https://iwitness.usc.edu/SFI/

https://www.nationalww2museum.org/

https://www.bbc.co.uk/programmes/b04bwydw

https://www.kialo.com/

https://www.nosweatshakespeare.com/resources/shakespeare-translator/

https://www.tutor.com/subjects/literature

https://www.readworks.org/

http://www.read.gov/

https://www.poetryfoundation.org/learn/resources

https://www.rhymezone.com/

https://www.easybib.com/

https://www.duolingo.com/

https://verbalicity.com/learn-spanish-free/

http://a4esl.org/

https://www.learnalanguage.com/

http://www.openculture.com/freelanguagelessons

https://www.surfacelanguages.com/

https://www.internetpolyglot.com/

https://www.choosemyplate.gov/

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