GROWTH & CHANGE

Mrs. LordUnit 3

Lesson 1

Adolescence -

The period from childhood to adulthood.

Puberty -

When a person begins to develop certain traits of an adult of his or her own gender.

Puberty marks the beginning of adolescence.

During Puberty

What is responsible for the changes that affect teens during puberty??

- Hormones

Hormones-

-What is a Hormone?

Chemical substances that are produced in glands.

They play a role in sexual growth, development, and reproduction.

Hormones Testosterone – Male hormone

Estrogen & Progesterone

Female hormones

Primary Sex Characteristics -

-related directly to the production of reproductive

cells which is called, Gametes.

Male gametes – spermFemale gametes - eggs (ova)

Secondary Sex Characteristics-

Additional changes during puberty that occur over several months or years.

What do you think these are????

Secondary Sex Characteristics:

Males: Facial hair appearsBody hair appearsVoice deepens Shoulders broadenMuscles developHairline begins to recedePerspiration increases

Secondary Sex Characteristics:

Females:

Breasts developBody hair appearsWaistline narrowsHips widenBody fat increasesMenstruation startsPerspiration increases

1. WHAT IS A HORMONE?2. WHAT IS PUBERTY?3. WHAT ARE 2 FEMALE AND 2 MALE SECONDARY

SEX CHARACTERISTICS4. NAME THE MALE/FEMALE GAMETE5. __?__ THEY PLAY A ROLE IN SEXUAL GROWTH,

DEVELOPMENT, AND REPRODUCTION.6. __?__ IS THE PERIOD FROM CHILDHOOD TO

ADULTHOOD

Homework

Grab a Book

Turn to page 242 – Read lessons 1 and 2