Soap reduced the surface tension of water because only 10 drops of water and soap mixture were added to the penny before the liquid spilled over, compared to 50 drops of water without soap. Sources of error include variations in the volume added with each drop, the time between drops, and the surface of the penny being cleaned as the water/soap mixture is added in each trial. The experiment could be improved by observing other indications of surface tension, including measuring the contact angle.]

i won't lie i don't know so go online and ask google thats what i do

osteogenesis imperfecta (oi) refers to a congenital ailment of bones. in the condition, the bones become brittle or fragile. this ailment is a general result of the defect or mutations in the genes (colia1 or colia2). this mutation results in imperfect collagen formation either in quantity or quality wise.  

there are eight kinds of oi defects, and each kind varies with certain distinctions in symptoms. the usual symptoms include frequent bone fractures, loss of hearing in infants, protruding eyes, discoloration of the white in the eyes, respiratory issues, loosening of the joints, short stature, and other symptoms.