Google Earth: view the earth from satellites
Google Sketchup: learn to create 3D drawings
CODE: learn how to code
Lego Digital Designer: learn to design objects, buildings, etc.
Tux Math: practice your math skills
Tux Typing: work on your typing skills
Tux Paint: a fun painting program
Childsplay: perfect for Kindergarten
Gcompris: has numerous activities for children ages 2 to 10