SCIENCE
http://kidsactivitiesblog.com/50127/fun-science-activities
http://www.sciencekids.co.nz/gamesactivities.html
MATH
http://www.mathplayground.com/rocket_angles/index.html
http://www.mathplayground.com/mobile/pre_brain_workout_multiplication.html
http://www.mathplayground.com/wangdoodles/index.html
ENGLISH
http://www.breakingnewsenglish.com/
http://www.pbskids.org/naturecat/game.html?hals-big-dig