Growing Up & Puberty
Describe the stages of human development from birth to old age: baby, toddler, child, adolescent (puberty), young adult, middle-aged adult, elderly — understanding the physical changes that happen at each stage, especially during puberty
What a learner can do afterwards
- Name and order at least six life stages from birth to old age
- Describe key physical changes during puberty (growth spurts, body shape changes, development of adult features)
- Explain that puberty is triggered by hormones — chemical messengers released by glands
The lesson
Your body keeps changing your whole life. It moves through six main stages: baby, toddler, child, adolescent, adult, and elderly. Right now you're moving from child toward adolescent, the stage where puberty happens.
Puberty changes your body from a child's shape into an adult's shape. You may notice a growth spurt, growing taller faster than before. Shoulders or hips widen, and adult features like body hair start to appear.
These changes aren't random. Glands in your body release hormones, chemical messengers that travel in your blood and tell your body when to start changing. Hormones switch on at a different age for everyone, and that's normal.
You grow through six life stages, from baby to elderly. Puberty is when hormones from your glands trigger the growth spurts and body changes that turn a child into an adult.
Watch it
Where it sits
This opens up
Where this leads
Jobs that lean on this skill. Follow one to see everything it is built on.
8 questions wait behind this lesson, each with its answer explained. Every answer feeds the sky: stars light as they are learned, and dim when it is time to come back.