Learn about bacteria and many other different types of micro-organisms and the benefits and dangers they present in our world. The fun hands-on science experiments in this Magic School Bus kit use the scientific method and will get kids thinking like a scientist as they grow their own cultures of mold, fungi, and bacteria. Some adult supervision and household materials required. Note: Before starting your experiments, be sure to purchase agar, sterile swabs, and yeast. Antibiotic ointment will also be needed and can be purchased at your local drugstore!