All are excellent hands-on sites for students.
Health Teacher - Offers lesson guides, teacher support, health literacy.
Health Headquarters - The National Health Museum site that offers news, activities, visual library and "just for students.
KidsHealth - Click on "kids or teens" for a wealth of health info presented on the student's level.
Dole Five a Day - Activities, reference materials and lesson plans to develop fun ways to educate your students about the importance of eating fruits and vegetables. Many downloadabe activity sheets.