Title rated 4 out of 5 stars, based on 30 ratings(30 ratings)
DVD, 2003
Current format, DVD, 2003, Classroom ed. DVD, No Longer Available.
DVD, 2003
Current format, DVD, 2003, Classroom ed. DVD, No Longer Available. Offered in 0 more formats
Bill Nye becomes a real heart-throb when he talks about the not-so-wimpy organ, the heart. Valves, blood cells and the circulatory system work together to pump it up ... the heart, that is.
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