Simple Machines
GEARS & WHEELS Video-t http://youtu.be/muY_iwyOzPc
Petito- Mechanical Car Project
http://teacherweb.com/CA/RichardsonMiddleSchool/Petito/ap1.aspx
IMPORTANT LINKS
https://docs.google.com/a/etusd.org/document/d/12LbR0gteuzuHxtVcHQHPWKjRn05PeZZ6TdSshIo_0bA/edit