Lesson 13: Mexico (1 of 2) From National Geographic Reading Expeditions, Mexico, © 2002. Reprinted by permission.

©20

05 b

y S

teph

anie

Har

vey

and

Ann

e G

oudv

is fr

om T

he C

ompr

ehen

sion

Too

lkit

(Por

tsm

outh

, NH

:Hei

nem

ann)

.Thi

s pa

ge m

ay b

e re

prod

uced

for

clas

sroo

m u

se o

nly.

38

Rol

lout

pho

togr

aph

K25

73 ©

Just

in K

err

©D

avid

Har

very

/NG

S Im

age

Col

lect

ion

8

Lesson 13: Mexico (2 of 2)From National Geographic Reading Expeditions, Mexico, © 2002. Reprinted by permission.

©20

05 b

y S

teph

anie

Har

vey

and

Ann

e G

oudv

is fr

om T

he C

ompr

ehen

sion

Too

lkit

(Por

tsm

outh

, NH

:Hei

nem

ann)

.Thi

s pa

ge m

ay b

e re

prod

uced

for

clas

sroo

m u

se o

nly.

39

©H

.M.H

erge

t/NG

S Im

age

Col

lect

ion

9

Lesson 13: Understanding Electricity (1 of 2) From National Geographic Reading Expeditions, Understanding Electricity, © 2002. Reprinted by permission.

©20

05 b

y S

teph

anie

Har

vey

and

Ann

e G

oudv

is fr

om T

he C

ompr

ehen

sion

Too

lkit

(Por

tsm

outh

, NH

:Hei

nem

ann)

.Thi

s pa

ge m

ay b

e re

prod

uced

for

clas

sroo

m u

se o

nly.

40

©H

ugh

Ros

e/V

isua

ls U

nlim

ited

23

Lesson 13: Understanding Electricity (2 of 2)From National Geographic Reading Expeditions, Understanding Electricity, © 2002. Reprinted by permission.

©20

05 b

y S

teph

anie

Har

vey

and

Ann

e G

oudv

is fr

om T

he C

ompr

ehen

sion

Too

lkit

(Por

tsm

outh

, NH

:Hei

nem

ann)

.Thi

s pa

ge m

ay b

e re

prod

uced

for

clas

sroo

m u

se o

nly.

41

©S

uper

stoc

k, In

c.

24