Gallery: Mrs. Moon's 'Egg on Mars' Project :: Current Image ID: 45436 :: Images in Gallery: 30 Gallery Description: 7th grade science classes were given limited materials with the instructions to design and build a space craft capable of carrying and safely landing on Mars with a payload of a raw egg. Materials: 2 pipe cleaners, 2 styrofoam plates, 2 toothpicks, 4 cotton balls, a 6 inch piece of cardboard, a glue stick, and scissors.