Daily Archive: September 26, 2011


Human Body Unit: Heart and Circulatory System Activities

Our study of the heart and circulatory system started with a listen to our own heartbeats. We measured our heart rates when resting and after walking, running and skipping. Then using a graph put out by Texas heart institute(4th grade curriculum, p. 25, no longer available), we graphed our results. Heart as a Pump: We did this experiment: When your heart beats it acts like a tennis ball filled with...