Here are some FLL EV3 robot images of the girls build. The 4th motor forklift is really cool.
Looks like this weekend they can do a straight test. If it goes well, they will start on missions. 2 attachment motors and the forklift give them a lot of options.
They are building the axle supports and bumpers for wall following. After that they just need to add sensors. They plan to add two color, a gyro and a touch.
For the project, the team identified a problem, microbeads. They talked to a naturalist to understand the impact. Now they just need to finish research and identify a solution. I only hope the problem is not too close to waste water.