Science

Fill in the black blanks

Nose ,mouth ,trachea , bronchi , bronchiole

What are the functions of the capillaries, heart ,vein , artery and blood vessels

Capillaries= exchange water and nutrients in your blood heart = to pump blood to the rest of the body vein = carry blood to the heart arteries =carry blood away from the heart blood vessels= carry blood around our body

Which blood vessels ( a b c d ) carry blood that is rich in oxygen

A and c

Which blood vessels (a b c and d ) carry blood that is rich in carbon dioxide

D and b

Name 5 physical changes that happen to boys during puberty

Facial hair develops

Voice breaks and becomes deeper

Shoulders becomes broader

Muscles develop all over the body and strength increases

Testis and penis become bigger

Name 3 changes that happen to girls during puberty

Hips become wider

Menstruation starts

Breast devolop and become bigger to provide milk to babies after giving birth

Name 3 changes that happen in both girls and boys during puberty

Hair grows in armpits and pubic area

The skin produces oily substances that causes pimples if not washed properly

Become heavier and taller known as a growth spert

Function of the ovary, uterus , oviduct ,vagina

Ovary is where eggs and female sex hormones are produced

Vagina is where the male reproductive organ enters the female body it’s also a birth passage

Oviduct is a narrow tube that extends from the ovary to the uterus the egg travels from this tube to the uterus

Uterus is where the baby develops and grows inside the mothers body

What is the function of the penis testis and the sperm duct

The penis is inserted through the vagina in the female reproductive system

The testis is where male sex hormones and sperms are produced

The sperm duct is where sperms travel to get to the penis

What happens if an egg does not meet an sperm

The lining of the uterus will shed or remove