http://www.topmarks.co.uk/interactive.aspx?cat=64 for science stuff
http://studyjams.scholastic.com/studyjams/jams/science/weather-and-climate/seasons.htm for weather and seasons
social studies/economics/money
math:
place value review at : http://www.abcya.com/base_ten_fun.htm
line plots game review: http://studyjams.scholastic.com/studyjams/jams/math/data-analysis/line-plots.htm
pictographs game:
bar graphs review: http://www.softschools.com/math/data_analysis/bar_graph/activities/favourite_colors_bar_chart/
telling time review: do the harder levels and the analog not digital clock: http://www.abcya.com/telling_time.htm
counting money (do level 1 and level 2)
counting money word problems http://www.mathnook.com/math/countingmoneyadv.html