Junior General Science

acid alcohol ammonia amount atmosphere bacteria barometer blood blue body boiling Boötes bottle bread breathing bulb burning called candle carbohydrates carbon dioxide cause cells cent chimney cirrus clouds cloth clouds coal cold color contains convex lens cool cubic foot cubic inches digestion disease earth electricity enters evaporation feet fire flask fluid ounces freezing germs glass gram heat humidity hydrogen hydrometer kilogram lens light rays liquid magnet melt mercury metal meter miles milk moisture molecules moon nerve object oxygen particles pass person piece pipes plants pounds pressure prevent produce protein radiant energy rain rays of light retina rise sewer gas side sound waves specific gravity square starch stars steam strings substance sugar surface temperature thermometer tube tuberculosis vegetables ventilation vibrations warm weather weight wind wire