CAMBRIDGE — A soda bottle, a balloon, and a straw were the basic components needed for a jet-propelled toy car as more than a dozen children participated in “Recycled Creations” at the Dorchester County Public Library. As the racing car soda bottle took off, so did the Library’s workshop program, part of the “Summer Reading Program.”

Children in grades K-5 are enjoying a series of hands-on workshops at the library in programs presented by the partnership of the library and 4-H, a University of Maryland Extension program.

So far, the children have enjoyed “Super Safari,” a virtual exploration with tracks, bones and pelts to learn about local animals and “Recycled Creations,” exploring the importance of recycling and also, how to turn trash into treasure.

Still ahead, are workshops about “Water and Wetlands” on July 10, and “Pollinators” on July 17 when children will learn about the animals that help plants and humans thrive. ”Creepy Crawlers” will visit on July 24, and “Health Gardens” on July 31. All the programs start at 1 p.m. and end at 2:30.

Navonne Owen, the 4-H Dorchester County Agent, says “The 4-H volunteers, are trained and experienced, and the purpose is to engage children in a “hands on” project that is enjoyable and educational.”

Library personnel also are part of the fun workshops. The children are served lunch or snacks and pre-registration is requested.