Young children learn best when they have opportunities to have meaningful conversations with a social partner. Curious conversations enable children to explore their science interests by having discussions with a virtual buddy named Trazo. Our platform leverages smart speakers in households to engage learners in science-related content. Trazo will read a science story in a physical book along with a child, ask the child to answer questions, and engage them in different activities. Through Curious Conversations, children will gain confidence, build creativity and become independent learners as they engage with science activities and topics that resonate with their interests.