Matthew+B.

Matthew's Stem 2012 Information

"Solar Ovens" I built my solar oven with wood, black felt, and aluminum. I made it like a grill (shown in my powerpoint). Unfortunately since I put the cookies on top, too much heat escaped; therefore leaving the cookies undercooked. I used the wood and aluminum for the grill bars beacause it reflects light and the black felt for the sides because it attracts heat. I also used the aluminum to layer the bottom. I learned a lot about solar energy during this experiment. It was fun.

"Tetrahedron Kites"

A tetrahedron kite is made up of four or more tetrahedrons to make a kite. You are supposed to string together three straws on a piece of string and tie a knot in it. Then tie your shorter piece of string to the triangle and put two straws on it. Tie those to the empty side of the triangle. End by putting one straw on the longer piece of string you should've left out and tie it to the opposite triangle. I did that four times and connected them to make a bigger tetrahedron. I learned a lot about this this shape I would otherwise call a pyramid.