Penn State's Master of Education in Earth Sciences program was ranked 2nd in Early Childhood Education Degrees' Top 10 Online Masters in Science Education Degree Programs. Their ranking was based on affordability, flexibility and academic prestige.
"Penn State’s world campus brings exceptional programs for multiple disciplines to students all over the world and their Master of Education in Earth Sciences is a phenomenal program for teachers of middle and high school science. The focus on earth sciences means that teachers will have extensive knowledge of topics like the geosciences, energy and mineral engineering, meteorology, geography, and astronomy. This program includes course material on curriculum and instruction- meaning you have access to the what part of teaching and the how- an essential for classroom success."
See the full review and ranking at http://www.early-childhood-education-degrees.com/top/online-masters-science-education-degree-programs/.