1. GROWTH & CHANGE
Mrs. Lord
Unit 3
Lesson 1

2. The period from childhood to adulthood.
Adolescence -
The period from childhood to adulthood.

3. Puberty -
When a person begins to develop certain traits of an adult of his or her own gender.
Puberty marks the beginning of
adolescence.

4. - Hormones During Puberty
What is responsible for the changes that affect teens during puberty??
- Hormones

5. Hormones- -What is a Hormone?
Chemical substances that are produced in glands.
They play a role in sexual growth, development, and reproduction.

8. Hormones Testosterone – Male hormone Estrogen & Progesterone Female hormones

9. Primary Sex Characteristics -
-related directly to the production of reproductive cells which is called, Gametes.
Male gametes – sperm
Female gametes - eggs (ova)

11. Secondary Sex Characteristics-
Additional changes during puberty that occur over several months or years.
What do you think these are????

12. Secondary Sex Characteristics:
Males:
Facial hair appears
Body hair appears
Voice deepens
Shoulders broaden
Muscles develop
Hairline begins to recede
Perspiration increases

13. Secondary Sex Characteristics:
Females:
Breasts develop
Body hair appears
Waistline narrows
Hips widen
Body fat increases
Menstruation starts
Perspiration increases

14. Homework what is a hormone? What is puberty?
What are 2 female and 2 male secondary sex Characteristics
name the male/female gamete
__?__ They play a role in sexual growth, development, and reproduction.
__?__ is The period from childhood to adulthood

15. Grab a Book
Turn to page 242 –
Read lessons 1 and 2