Contact Us: 415.221.6161

140 Balboa Street @ 3rd Ave.
San Francisco, CA 94118

Catapults Building

SFUSD Furlough Day - March 16, 2012

Catapults are a source of endless fun and joy.  In fact, you may experience too much fun as you build different kinds of catapults mostly from wood by measuring, cutting and nailing.   We will begin in medieval times by building a counterweight trebuchet which proved to be so effective that it was a game changer for four centuries.  The traction catapult is next except we will use ping pong balls instead of rocks and metal balls.  We will end the day by building a catapult made of Legos.  Using our newly minted catapults we will learn first-hand about leverage, kinetic and potential energies. 

Grades: 1-4
Fee: $85
Hours: 9am-4pm with extended care 8-9am and 4-6pm @ $10/hr.

To register please click "Register Here!" on left of this page