Totem Poles

click here to make a totem pole
http://mrnussbaum.com/totem/

Friction activity- building ROLLERCOASTERS

Try out these sites to see how gravity and friction make the roller coasters work-----or fail!
http://discoverykids.com/games/build-a-coaster/
http://dep.disney.go.com/sodi_app/index.html?st=2

You can also try http://www.friv2online.com/rollercoastercreator2.html