Oceanography – Hydra-ology
Today, our team of oceanographers worked on another NOAA project involving a freshwater Cnidarian, the hydra. Turns out, in the Great Lakes of North America there is a population boom of the invasive Daphnia luminex (a close relative to the Daphnia we studied earlier this week). The Great Lakes all connect to the Atlantic Ocean. To prevent invasive spread of D. Luminex into the ocean waters, NOAA wanted us to test the feeding response of hydra on Daphnia to determine if it could be used as a biological control agent. They turned their camera phones into microscopes to document their investigation!
Ask your camper: Did the hydra eat the daphnia? (answers vary by campers, but chances are at least someone in the class had a successful foraging event!)
Makey Lab – Power Project
Let’s light up the night! Today campers began designing and decorating their own night lights, to finish and bring home at the end of the week. Campers applied their knowledge of circuits to draw out the base of the night light, where the lights and on/off switch will be placed tomorrow. To decorate their night lights, campers created tissue paper mache cups to place over the base that will illuminate beautiful colors!
Ask your camper: Which type/s of circuits will be part of your nightlight? (BOTH series and parallel)
Engineering Explorations – Rube Goldberg
Second-to-last day of our engineering extravaganza week and our enterprising engineers should be feeling very excited and proud as their Rube Goldberg projects are starting to come to completion. Today students continued testing and troubleshooting their actions and working to link the actions of their simple machines together within their larger contraption to ensure that their machine is iterative (repeatable) and reliable. Teams then proceeded to document their inventions so that they are ready to present their creations to the whole on our final day tomorrow.
Ask your camper: What were some obstacles you had to troubleshoot and find solutions for your invention today?