Blood is necessary for life. It is an essential part of your circulatory system. Dr. Alicia Lachiondo and Dr. Roger Turcotte join Science Trek Podcast hosts Evie and Garrett to answer students’ questions about blood, what it’s made of and how it keeps you healthy.

Kids have lots of questions about science. Hosts Evie and Garrett are here to help. On episodes of the Science Trek Podcast, scientists answer elementary-age students’ questions on a variety of science topics. The podcasts pair perfectly with the website, ScienceTrek.org, where kids, parents and educators can find videos, facts, games, teacher resources, lesson plans, 360° immersive videos and more! Science Trek is produced by Idaho Public Television, a trusted source for children's educational content.