THE STATUS OF EARTH AND SPACE SCIENCE COURSES IN PENNSYLVANIA WAS INVESTIGATED. OF 461 QUESTIONNAIRES SENT TO SECONDARY SCHOOLS OFFERING EARTH AND SPACE SCIENCE, 172 WERE RETURNED. TABLES AND PERCENTAGES WERE USED TO INTERPRET FINDINGS. MORE THAN 87 PERCENT OF THE RESPONDENTS HAD BEEN TEACHING EARTH AND SPACE SCIENCE FOR LESS THAN FIVE YEARS - FOUR YEARS WAS THE MOST FREQUENTLY MENTIONED LENGTH OF TIME. FORTY-ONE SCHOOLS HAD LESS THAN 100, 42 HAD 100 TO 200, AND 26 HAD MORE THAN 200 STUDENTS ENROLLED IN EARTH AND SPACE SCIENCE PROGRAMS. EIGHTEEN SCHOOLS REPORTED TEACHING ONE SECTION OF EARTH AND SPACE SCIENCE, AN ADDITIONAL 18 TAUGHT TWO SECTIONS, AND 54 TAUGHT THREE OR MORE SECTIONS. THE RESPONDENTS LISTED 213 TEACHERS INVOLVED IN TEACHING AT LEAST ONE COURSE IN EARTH AND SPACE SCIENCE. THE MOST FREQUENTLY MENTIONED TEXT USED BY SCHOOLS WAS "THE WORLD WE LIVE IN" BY NAMOWITZ AND STONE. ONE HUNDRED CLASSES OF EARTH AND SPACE SCIENCE WERE LABORATORY-CENTERED, WHILE 64 INDICATED A NONLABORATORY CENTERED PROGRAM. OTHER INFORMATION INCLUDED IN THE SURVEY WAS RELATED TO FIELD TRIPS, THE USE OF OBSERVATORIES, THE AVAILABILITY OF TELESCOPES AND WEATHER STATIONS, AND PROBLEMS ENCOUNTERED IN THE TEACHING OF EARTH SCIENCE. (AG)