4 Winds: Erosion

Alex and Jack putting on the puppet show!

Rock-Shaking: Making the water murky!

More rock-shaking

Thomas is getting right in there to observe!

Kristi working with the group.

Alex, Jayden, and Julia doing the drop test. 

Kristi demonstrating how to drop the water properly :) Behind her are Jack, Eddie, Cady Scout, and Thomas.

Ben, Natasha, and Lilly doing the drop test. 

Eddie and Jack.

Sarah trying out the dropper. 

Thomas is stretching the experiment a little! 

Now he's getting much closer!

Jayden and Julia conducting the experiment while Alex watches closely. 

The friction test. 

The whole gang outside building hillsides that can stop from rushing down. 

The design process. 

Gathering materials and constructing.

Kristin offerring a little guidance. 

Kristi helping out. 

Adding some leaves to the hill.

Looks like this group had a similar idea!

Stones!

Very precise work, Eddie!

A finished product. 

Will it work?