Mathematics and Society - OS X Lion Server

.''Y07.(f2 IfEfiJ2r15.Jt. ELDOD;GOOD JM!CJff(lf£I. The human heart pumps about 60 millilitres of blood for each beat.1) If an average of 80 heartbeats per minute is used, how many millilitres of blooddoes the heart pump per minute?2) How many litres of blood is this?3) Get two large containers and fill one with water. Use a 50 ml measuring cupto see how much water you can scoop into the empty container in one minute.Measure this amount and compare it to the amount the heart can pump in oneminute.4) Try a garden hose or a faucet. Can either put out as much in one minute as yourheart?II.It is estimated that a human has about 25,000,000,000,000 (25 trillion) red bloodcells. The average diameter of a red blood cell is about .008 millimetres.1) If placed end to end, how long of a line would these blood cells make?(2) If placed in the shape of a square, how long would each edge of the square be?3) If placed in the shape of a cube, how long would each edge of the cube be?ADAPTED FROM: Keeping Alive in Action Biology Series by Stanley L. Weinberg and Herbert J. 5toltze,Copyright © 1974 by Allyn and Bacon, Inc.Permission to use granted by Allyn and Bacon, Inc.(.Well-Being, Probing the Natural World, Level Ill, Intermediate Science Curriculum Study140 Permission to use granted by Silver Burdett General Learning Corporation