 Why doesn’t Eddie act excited about Teena going prospecting with him?
20 Eddie went inside and followed Teena to the kitchen. They had been ever since Eddie’s family had moved to Oceanview and his father had become head of the college’s atomic-science department. Teena’s father was chief engineer for the Acme Aviation Company, one of the coast town’s largest manufacturing concerns. 22 “Oh, yes, it’s fun, Mother,” Teena replied, wrapping wax paper around a sandwich. The main information was in the evening Globe , which Eddie rushed out to get as soon as he heard it plop onto the front porch. After having finished, Mr. Taylor handed the paper to Eddie and leaned back thoughtfully in his chair.
 Eddie has a crush on Teena, and therefore doesn’t want to act too eager and uncool.
 Eddie doesn’t want Teena to come because there isn’t much time left in the day for prospecting Cedar Point.  Eddie has a crush on Teena, and therefore doesn’t want to act too eager and uncool.  Eddie doesn’t want Teena to feel like she is obligated to help him fulfill his dream of finding radioactivity at Cedar Point.  It is implied that Eddie doesn’t want Teena to feel like he knows a lot more science than she does. Eddie feels this will make Teena not like him.