George Springer is greeted at home plate by Dexter Fowler after his first inning home  run. (MLB/photo)

George Springer is greeted at home plate by Dexter Fowler after his first inning home run. (MLB/photo)

Houston’s young team displayed the type of fire power they are capable of producing and increased their winning streak to five games after sweeping the Royals on Wednesday afternoon in a 9-3 final at Kauffman Stadium.

Chris Carter connected for two home runs, and George Springer set a rookie club record for homers in a month, with his ninth.  That came in the first off  Royals starting pitcher Danny Duffy, who was roughed up, allowing six runs on seven hits and five walks in four-plus innings. The first four Royals pitchers combined to walk 10, which was a season high.

Carter, who had been benched with a .192 batting average, homered to lead off the fifth. He hit a three-run homer in sixth off reliever Louis Coleman for his fourth career multihomer game and his first this season.

The Astros outscored the Royals 21-5 in the series.