From the scholarship spreadsheet I keep for women in STEM (a few may not apply to you as some are only for black students, etc) –
Outdated deadlines should have similar deadlines every year, so just google them 
Deadline Name
8/15/2014 Internet Providers Scholarship
9/30/2014 Siemens Competition (science fair/competition)
10/31/2014 Coca-Cola Scholars Scholarship
11/1/2015 Ron Brown Scholars Program (African American students)
11/1/2014 Jack Kent Cooke College Scholarship
11/12/2014 Intel STS (science fair/competition) - also look into Intel ISEF
11/15/2014 Stokes Educational Program (must work for them afterwards)
12/5/2014 National Space Club Keynote Scholarship
12/5/2014 Elks Most Valuable Student Scholarship
12/5/2014 Sodexo Stop Hunger Now Scholarship
12/15/2014 Burger King Scholars
12/15/2014 AXA Achievement Scholarship
12/31/2014 NFIB Young Entrepreneur Scholarship
1/5/2015 RMHC U.S. Scholarships (general)
1/5/2015 RMHC/Asian Scholars
1/5/2015 RMHC/African-American Scholars
1/5/2015 RMHC/HACER (Hispanic/Latino) Scholars
1/8/2015 GE-Reagan Scholarship
1/14/2015 Gates Millenium Scholarship
1/15/2015 BMW/SAE Engineering Scholarship
1/15/2015 Ford/SAE Foundation Scholarship Fund
1/15/2015 Dan and Vicky Hancock Scholarship
1/15/2015 Edward D. Hendrickson/SAE Engineering Scholarship
1/15/2015 Donald and Barbara Mozley Scholarship
1/15/2015 Tau Beta Pi/SAE Engineering Scholarship
1/15/2015 TMC/SAE Donald D. Dawson Technical Scholarship
1/15/2015 Fred M. Young Sr./SAE Engineering Scholarship
1/21/2015 Simon Youth Community Scholarship
1/31/2015 Lint Center Scholarships (direct to you)
January Kaiser Permanente Asian Association Scholarship
2/1/2015 AXA Achievement Community Scholarship
2/13/2015 The Emerald Circle (Girl Scouts in San Jacinto Council)
2/15/2015 Davidson Fellows Scholarships
2/15/2016 ACPE Scholarship (Oregon & Washington students)
2/27/2015 Buick Achievers Scholarship
2/28/2015 Youth Foundation HADDEN Scholarship
3/1/2015 Blacks at Microsoft Scholarships (African American students)
3/2/2015 Shell Incentive Fund Scholarship
3/2/2015 GEICO Achievement Awards
3/3/2015 SanDisk Scholars Program
3/5/2015 Generation Google Scholarship
3/9/2015 VIP Consulting Women in Tech Scholarship
3/15/2015 The Fine Young Capitalists Technology Diversity Scholarship
3/15/2015 Microsoft disAbility Scholarship (disabled students)
3/31/2015 Big Fish Gaming Scholarship
4/1/2015 Buildium Women in Tech
4/6/2015 Great Lakes Scholarship
4/11/2014 Westinghouse Women in Nuclear Scholarship (Pittsburgh students)
4/15/2015 Exxon Mobil/LNESC Scholarship (Hispanic Students)
4/15/2015 Best Value Schools Women in STEM
4/30/2015 Digital Dreamers
4/30/2015 Milton Fischer Scholarship
5/29/2015 ESA Foundation Scholarship
7/31/2015 Lint Center Scholarships (direct to you)
Tall Clubs International Scholarships
Daughter of American Revolution Scholarship
REC Foundation and Texas Instruments Scholarships
2/3/2015 Jimmy Rane Scholarship
Kohl’s Cares Scholarship Program
VIP Women in Tech Scholarship
Bruce Lee Scholarship from CelebrAsian
Beyond the Boroughs Scholarship
Intertech Scholarship
MENSA Scholarships
Women in Aviation Scholarships
SWE Scholarships
Monthly GoEnnounce
Asian Pacific Fund
Ann & Reynolds Scholarship