Important Scientific Instruments • Hydrometer measures humidity • Barometer measures atmospheric pressure • Purity of milk is measured by lactometer • Fathometer measures the depth of oceans. • Sextant is used for measuring altitude of Sun and other heavenly bodies • Chronometer records accurate time on ships • Algesimeter indicates the degree of sensitiveness of

Important Unit of Measurements • 1 horse power is 745.7 watts • 1 horse power = work equal to lifting 550 lbs of weight to one foot for one second • 1 calorie is equal to 4.2 Joules • 1 barrel is equal to 159 liters • 6 feet = 1 fathom • 1 kwh

Definitions of Various important branches of Science • Taxidermy means stuffing dead animals • Stenography means short hand writing • Psoriasis is a learning disability • Paleontology is study of fossils. • Hematology is the study of blood. • Study of earth is geology • Acoustics is the science of sound • Cytology is the