Cara Santa Maria is a science communicator, writer, producer and television personality. She is the host of "Take Part Live" on and "TechKnow".Cara Santa Maria is a science communicator, writer, producer and television personality. She is the host of "Take Part Live" on and "TechKnow".Cara Santa Maria is a science communicator, writer, producer and television personality. She is the host of "Take Part Live" on and "TechKnow".