The water cycleThe water cycle• Th e wa t e r of t h e Th e wa t e r of t h e

Ea r t h is c ons t a nt Ea r t h is c ons t a nt

c ir c ula t ing . Dur ing c ir c ula t ing . Dur ing

mor e t h a n 3 b illion mor e t h a n 3 b illion

ye a r s t h e wa t e r ye a r s t h e wa t e r

h a s b e e n r e c yc le d . h a s b e e n r e c yc le d .

To t h is pr oc e s s h e To t h is pr oc e s s h e

is known a s is known a s

h yd r olog ic a l c yc leh yd r olog ic a l c yc le

The water The water cyclecycle• Th e c yc le b e g ins Th e c yc le b e g ins

wh e n t h e h e a t of wh e n t h e h e a t of

t h e S ol e va por a t e s t h e S ol e va por a t e s

t h e wa t e r of t h e t h e wa t e r of t h e

oc e a nsoc e a ns

The water The water cyclecycle• Th e r id e t owa r d s Th e r id e t owa r d s

t h e a t mos ph e r e t h e a t mos ph e r e

a nd it f or ms a nd it f or ms

c loud sc loud s

The water The water cyclecycle• Wh e n t h e Wh e n t h e

c ond it ions a r e t h e c ond it ions a r e t h e

ind ic a t e d one s , ind ic a t e d one s ,

t h e c loud s unloa d t h e c loud s unloa d

wa t e r in t h e s h a pe wa t e r in t h e s h a pe

of r a in or s nowof r a in or s now

The water The water cyclecycle• Th e ma j or it y of Th e ma j or it y of

t h e r a in f a lls d own t h e r a in f a lls d own

on t h e oc e a ns , b ut on t h e oc e a ns , b ut

t h e r e s t f a lls t h e r e s t f a lls

d own on la nd . Th e d own on la nd . Th e

r ive r s a nd t h e r ive r s a nd t h e

c ur r e nt s ga t h e r c ur r e nt s ga t h e r

wa t e r of t h e s oil wa t e r of t h e s oil

a nd r e t ur n it a nd r e t ur n it

t owa r d s t h e t owa r d s t h e

oc e a ns , s o t h a t oc e a ns , s o t h a t

t h e wh ole c yc le t h e wh ole c yc le

r e t ur ns t o b e g in.r e t ur ns t o b e g in.

The water The water cyclecycle• Th e wa t e r c yc le Th e wa t e r c yc le

ne ve r f inis h e s ne ve r f inis h e s

b e c a us e t h e s a lt y b e c a us e t h e s a lt y

wa t e r of t h e wa t e r of t h e

oc e a ns c ons t a nt is oc e a ns c ons t a nt is

t a k ing s we e t t a king s we e t

wa t e r t o t h e wa t e r t o t h e

c ont ine nt s . c ont ine nt s .

The water The water cyclecycle• Be c a us e of it is Be c a us e of it is

ne c e s s a r y t o t a ke ne c e s s a r y t o t a ke

c a r e of our c a r e of our

e nvir onme nt a nd e nvir onme nt a nd

t o c ont a mina t e it t o c ont a mina t e it

f or t h a t it s poils f or t h a t it s poils

t h e h yd r olog ic a l t h e h yd r olog ic a l

c yc lec yc le

The water The water cyclecycle• I f we d o not t a ke I f we d o not t a ke

c a r e of t h e wa t e r c a r e of t h e wa t e r

in a f ut ur e we will in a f ut ur e we will

b e h e r e b yb e h e r e b y

The water The water cyclecycle• Do we wa nt t o Do we wa nt t o

h a ve our c h ild r e n h a ve our c h ild r e n

in a f ut ur e like in a f ut ur e like

t h a t ?t h a t ?

The water The water cyclecycle• Le t ' s t a ke c a r e of Le t ' s t a ke c a r e of

t h e wa t e r d r op t o t h e wa t e r d r op t o

d r op t h e wa t e r d r op t h e wa t e r

b e c ome s b e c ome s

e x h a us t e de x h a us t e d

Diapositive the Diapositive the water cyclewater cycle• Gr e c ia Hua ma n N e yr aGr e c ia Hua ma n N e yr a

• Lis e t h Ca mpos Q uis peLis e t h Ca mpos Q uis pe

• A mb a r Ba r r a ga n A r e va losA mb a r Ba r r a ga n A r e va los

• Be t z a b e t h Va lle j os F e r na nd e zBe t z a b e t h Va lle j os F e r na nd e z

• Le s li pa quir a c h i c a ld e r onLe s li pa quir a c h i c a ld e r on

• Ta nia Villa lob os Ga r c iaTa nia Villa lob os Ga r c ia