Educational Camps 2011 21st Century Princess Program: 9 a.m.-3 p.m. Monday through Friday,  July 23-27.  For girls 12-15. Girls learn hair care, good manners and the importance of inner beauty.  Homewood Suites by Hilton, 2001 E. Highland Ave.,  Phoenix.  $495.  www. homewoodsuites. hilton.com. (623) 848-1844. Barrow Institute Summer Camp: 9 a.m.-4 p.m. Mondays through Fridays, July 23 through Aug. 3. For ages 12-14. Activities include exploring laboratories and researching the effectiveness of treatments and medicines. July 23-27 for beginning students, and July 30-Aug. 3 for advanced students. Barrow Neurological Institute, 350 W. Thomas Road, Phoenix: $195-$220: www. thebni, com.(602) 716-2028.  Digital Kids World Summer Camp: 9 a.m.--4 p.m. Mondays through Fridays, July 30 through Aug. 17. For kids 6-14.  Choose from a variety of technical classes, such as comic book design and video game design. Morning and afternoon camps held in weekly sessions  .  Digital Kids World,  5070 N.  Central Ave., Phoenix. $150 weekly for kids 6-9; $225 weekly for kids 10-14. www. digitalkidsworld, com.(602) 445-3925.    Kids Advanced College Program:  Mondays through Thursdays, July 30 through Sept. 19. For ages 8-14. Classes include lively computer design,  engineering and writing. Prices and times vary. Paradise Valley Community College, 18401 N. 32nd St., Phoenix. $99--$379. www.pvc.maricopa.edu. (602) 787-6804.    Camp Zoo: Mondays through Fridays,  July 30 through Aug. 13. For ages 4-14. Younger kids work with smaller animals, basic care giving and art projects, while older children explore animal medicine. Morning, afternoon, evening and full-day sessions available. Phoenix Zoo, 455 N. Galvin Parkway, Phoenix. $153-$280 per week. www. phoenixzoo.org. (602) 273-1341. According to the passage, we know that   _  .
21st Century Princess Program lasts the longest all these activities are held in the same city the price of Camp Zoo is the highest per week Kids Advanced College Program is popular with plant lovers