Trent University
MyTrent
  • Academics
    • Undergraduate Programs
    • Graduate Programs
    • Trent Online
    • Summer Courses
    • Continuing Education
    • Study Abroad
    • Academic Calendar
    • Academic Timetable
    • Academic Skills Centre
    • Academic Advising
    • Library
    • Centre for Teaching and Learning
  • Admissions
    • Undergraduate
    • Thinking of Applying
    • Already Applied
    • Received an Offer
    • Accepted My Offer
    • Graduate
    • International
    • Indigenous
    • Returning to Trent
    • Transfer
  • Services & Support
    • Academic Advising
    • Academic Skills Centre
    • Administrative Departments
    • Alumni Services
    • Athletics
    • Campus Security
    • Careerspace
    • Colleges
    • Communications
    • Conferences
    • Financial Aid
    • Financial Services
    • Health & Wellness
    • Indigenous Services
    • Information Technology
    • International Students
    • Learning Support
    • Parking
    • Printshop
    • Recruitment
    • Registrar's Office
    • Residence & Housing
    • Student Clubs
    • TrentU Card
  • Research
    • Research at Trent
    • Research Centres
    • Find an Expert
    • Resources
  • Give to Trent
  • About Trent
    • About Trent
    • Careers
    • Giving to Trent
    • Governance
    • How to Find Us
    • Media
    • News & Events
    • President's Office
    • Staff Directory
    • Trent Facts
    • Contact Us
  • Campus Locations
    • Peterborough
    • Durham GTA
    • Online
  • Future Students
    • Undergraduate
    • Thinking of Applying
    • Already Applied
    • Received an Offer
    • Accepted My Offer
    • Graduate
    • International
    • Indigenous
    • Returning to Trent
    • Transfer
  • Current Students
  • The Colleges of Trent
  • Alumni
  • Apply
  • Visit
  • Give
  • Peterborough
  • Durham GTA
  • Map
  • Careers
  • Directions
  • Library
  • Site Map
  • Bookstore
Skip to main content Home
  • Peterborough
  • Durham GTA
  • Online
  • MyTrent
MENU
text that says Sex Education for Teachers and Students over a grey image
Trent University
School of Education
  • Welcome
  • Programs
  • Alternative Settings Placement
  • Faculty & Staff
  • Community
  • Research
  • Resources
  • Contact
  1. Trentu.ca
  2. School of Education
  3. Resources
  4. mature girls

Girls — Mature

Maturity in girls can be defined by physical development, emotional intelligence, and cognitive traits. While physical maturity is driven by biology, emotional and mental maturity are often seen as the result of personal growth and self-awareness. 🧬 Biological & Physical Features

: For girls, this usually occurs between ages 8 and 13. mature girls

: Mature girls experience dynamic levels of hormones like estradiol and progesterone, which regulate reproductive cycles. Maturity in girls can be defined by physical

Physical maturity typically begins with puberty, a period of rapid biological change. changes in body size and shape

: Biological maturation involves increases in percentage body fat, changes in body size and shape, and the completion of bone mass formation.

: The first sign is often breast budding (thelarche), followed by the first menstrual period (menarche).

Trent University Logo

Trent University respectfully acknowledges it is located on the treaty and traditional territory of the Mississauga Anishnaabeg. We offer our gratitude to First Peoples for their care for, and teachings about, our earth and our relations. May we honour those teachings.

The Campaign For
Momentous
Action Research Leadership Debate Performance Connection Discovery Ideas Places Stewardship Support Possiblity

Peterborough

1600 West Bank Drive
Peterborough, ON Canada, K9L 0G2

Toll Free:

Campus Map

Durham Greater Toronto Area

55 Thornton Road South
Oshawa, ON Canada, L1J 5Y1

Phone:

Campus Map

Social Media Directory

© 2026 Open Peak Journal

  • Contact
  • Directions
  • Site Map
  • Accessibility
  • Privacy
  • @ Copyright 2025 Trent University