https://www.khanacademy.org/science/telangana-class-8-biology/x9e658c120b0ca797:the-age-of-adolescence/x9e658c120b0ca797:voice-change/v/voice-change 2025-11-09T04:30:48.492506095Z Voice Change Why do male and female voices sound different after puberty? In this video, we will explore how the larynx (voice box) develops during adolescence and how hormones like testosterone and oestrogen influence this. We will learn about the role of vocal cords, thyroid cartilage, and laryngeal growth in shaping the unique voices of boys and girls. Khan Academy video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Voice Change Why do male and female voices sound different after puberty? In this video, we will explore how the larynx (voice box) develops during adolescence and how hormones like testosterone and oestrogen influence this. We will learn about the role of vocal cords, thyroid cartilage, and laryngeal growth in shaping the unique voices of boys and girls. https://cdn.kastatic.org/ka-youtube-converted/xg9K5VKlT8E.mp4/xg9K5VKlT8E.mp4 467 Changes in body https://www.khanacademy.org/science/revision-term-2-tg-biology-class-8/x04828215b460a495:week-3/x04828215b460a495:the-age-of-adolescence/v/changes-that-indicate-reproductive-abilities-adolescence-grade-7-science-khan-academy 2025-05-29T10:10:16.848304093Z Changes that Indicate Reproductive Abilities Adolescence brings visible changes like height and voice… but some of the most important changes happen quietly, inside the body. In this video, we explore the menstrual cycle — a natural biological process that marks the beginning of reproductive maturity in girls. We’ll understand what it is, why it happens, how often it occurs, and how to take care of your health and hygiene during menstruation. We also address the myths and taboos that often surround periods, and why it’s important to replace misinformation with facts, empathy, and awareness. Bitasta Datta video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Changes that Indicate Reproductive Abilities Adolescence brings visible changes like height and voice… but some of the most important changes happen quietly, inside the body. In this video, we explore the menstrual cycle — a natural biological process that marks the beginning of reproductive maturity in girls. We’ll understand what it is, why it happens, how often it occurs, and how to take care of your health and hygiene during menstruation. We also address the myths and taboos that often surround periods, and why it’s important to replace misinformation with facts, empathy, and awareness. https://cdn.kastatic.org/ka-youtube-converted/DtRGT-YPNdo.mp4/DtRGT-YPNdo.mp4 339 Changes in body