This study measured the influence of air conditioning, carpeting, fluorescent lighting, and interior pastel coloring on the academic achievement of eighth grade Georgia pupils in 1975-76 when the variance due to socioeconomic status was statistically controlled. Analysis of covariance was used to compare the achievement scores of students on the Iowa Test of Basic Skills. Pupil achievement in air conditioned school buildings was consistently higher than pupil achievement in non-air conditioned school buildings. This consistent pattern did not exist between carpeted school buildings and noncarpeted school buildings, between school buildings with fluorescent lighting and school buildings without fluorescent lighting, and between school buildings with interior pastel coloring and school buildings without interior pastel coloring. (Author/MLF)