A Manual of Experiments in Elementary Science: Teacher's Edition (1918)
Curtis, Francis D. · Charles E. Merrill Company · leaf 52
EXPERIMENTS IN ELEMENTARY SCIENCE plosion. It is incorrect to say that the water rises into the test tube : when the air in the test tube cools and contracts, a partial vacuum or reduced pressure is created in the test tube, the result being that the greater air pressure outside presses down on the… … mometer at all temperatures, but the apparent increase is due to expansion, or, in other words, the warmer a body is, the farther. apart are its molecules. 5. Since the temperature of a body is measured by the average speed of its molecules, the hotter a body is, the faster its molecules are…
Science · Lattitude · Longitude · Time · Seasons · Metric · Forces · Levers · Work · Pulleys · Heating · Cooling · Convection · Water · Rocks · Air · Soil · Conduction · Thermometer · Winds · Color · Sound · Electricity · Magnetism
Internet Archive · National Library of Education · Public domain (published before 1931). Free to use for anything.
