Let the trading begin!
Lunar landers. The students had 2 large marshmallows (astronauts), 10 small marshmallows, 8 straws, 3 rubber bands and 1 cup. They had to design a soft landing for their 2 astronauts which meant the astronauts had to stay in the cup with a fall from 2 feet. Our groups did a great job and we even moved the drop up to 30 inches!
Here is a look at our winning group.