Mister Rogers arrives and puts on a lab coat because he is feeling "scientific, ready for a true scientific endeavor. He compares a turtle, a conch shell, an armadillo, and a suit of armor delivered by Mr. McFeely. He shows various types of armor on Picture Picture. In the Neighborhood of Make-Believe a different scientist, Bud Alder, shows the difference between oil-based and water-based paints. He shares his wisdom with X the Owl, who offers to teach Lady Elaine the names of birds. Back at the house, Mr. McFeely returns to pick up the suite of armor.
