As part of a series of tests to measure mastery of specific skills in the natural sciences, copies of tests 14 through 26 include: (14) calculating an average; (15) identifying parts of the scientific method; (16) reading a geological map; (17) identifying elements, mixtures and compounds; (18) using Ohm's law in calculation; (19) interpreting food chains, webs and pyramids; (20) measuring angles of incidence, reflection and refraction; (21) calculating kinetic energy; (22) using F=ma; (23) using a table of geological pyramids; (24) using scientific notation 2; (25) manipulating equations; and (26) undertaking experimental design. The multiple choice questions were written for students in grades 7 through 10. Teachers' notes and scoring information are provided for each test. (CM)