Gilmanton fifth and sixth-grade students “Explored the Deep” with the National 4-H STEM Challenge! Mr. Lasher’s class beat the record for the least amount of items needed to ballast their ocean robot; they did it with four items. They determined it took 176 grams to make their ocean robot dense enough to ballast. A huge thank you goes to Gilmanton Schools and Mr. Lasher for allowing us to come and share this lesson with them!