The Wildcats (5-0) shot 31 of 48 overall and buried 12 of 19 3-pointers, with Shurna and Crawford leading the onslaught.
Shurna hit 7 of 8 shots, including all four 3s. Crawford was 8 of 11 overall and 3 of 5 from long range. Michael Thompson added 14 points and four assists, giving him 403 in his career and making him the second Northwestern player to pass 400 assists.
Georgia Tech (4-3) got 16 points from Glen Rice and 11 each from Ian Shumpert and Maurice Miller. But Brian Oliver struggled in a big way after a career performance against Syracuse. He went from scoring a personal-best 32 in a loss to the Orange to managing only three on 1 for 9 shooting.
NO. 2 OHIO STATE 58, FLORIDA STATE 44
In Tallahassee, Fla., Jon Diebler scored 12 points and Jared Sullinger notched his third double-double of the season to lead Ohio State in an ACC/Big Ten Challenge game.
Sullinger, a 6-foot-9 freshman, finished with 11 points and 13 rebounds while David Lightly added 10 points for the Buckeyes (6-0).
NO. 7 CONNECTICUT 62, NEW HAMPSHIRE 55
In Storrs, Conn., Kemba Walker scored 30 points and Connecticut returned from its triumphant trip to Hawaii with a harder-than-expected victory over New Hampshire.
Shabazz Napier added 11 points for Connecticut (6-0).
NO. 8 SYRACUSE 78, CORNELL 58
In Syracuse, N.Y., Rick Jackson had 17 points and 13 rebounds, his sixth double-double of the season, and Kris Joseph had 16 points for Syracuse (7-0), which has won 33 in a row in the series with Cornell (2-5).
NO. 10 KENTUCKY 91, BOSTON U. 57
In Lexington, Ky., Brandon Knight scored 23 points and Terrence Jones added 18 points and 11 rebounds as Kentucky (5-1) bounced back from its first loss of the season.
NO. 13 TENNESSEE 86, MIDDLE TENNESSEE 56
In Knoxville, Tenn., Tobias Harris scored 21 points and Scotty Hopson had 19 for Tennessee.
The Vols (6-0) outrebounded the Blue Raiders 41-21 and turned 16 offensive boards into 17 second-chance points.
NO. 25 NOTRE DAME 81, INDIANA STATE 72
In South Bend, Ind., Ben Hansbrough scored 19 of his 24 points in the second half to lead Notre Dame to victory.
The Irish (8-0) are off to the best start in the 11 seasons under coach Mike Brey.