ANIMALS DO MORE THAN EAT AND DRINK...Plaque is kind of like a net that helps the bacteria catch and...

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Animals Do More Than Eat and Drink

teri

a. M

ore

bact

eria

pro

duce

mor

e EA

T AND D

RINK

acid

. Mor

e ac

id o

n yo

ur t

eeth

can

enou

gh t

ime.

Whe

n yo

u ea

t su

gary

ANIM

ALS

DO

food

s, t

he b

acte

ria

mak

e a

lot

mor

e ac

id. T

hey

also

mak

e a

lot

mor

e ba

c-M

ORE

THAN

Aft

er t

he b

acte

ria

eat,

the

y pr

o-

duce

aci

d. T

he p

laqu

e ho

lds

the

acid

agai

nst

the

surf

ace

of y

our

teet

h.

The

acid

can

mak

e ho

les

in y

our

teet

h if

it is

hel

d th

ere

for

a lo

ng

Now

, do

you

kno

w wh

y it is

impo

r-ta

nt f

or y

ou t

o br

ush

your

tee

th

and

eat

health

y, n

ot s

ugar

y,

food

s?

28

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caus

e m

ore

deca

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Master 4.1a

2

do to survive?very, very sm

all. What do all anim

alsand som

e animals are very, very,

Earth. Some anim

als are very large,A

nimals live alm

ost everywhere on

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Master 4.1b

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The

bact

eria

live

tog

ethe

r, in

grou

ps c

alle

d co

lonies

, all

arou

nd

your

tee

th a

nd g

ums.

The

y m

ake

All

anim

als

eat

som

e ki

nd o

f fo

od,

som

e gl

uey

stuf

f th

at h

olds

the

m

and

all a

nim

als

take

in w

ater

. Do

you

onto

you

r te

eth

and

help

s th

em t

rap

know

wha

t el

se a

nim

als

do?

List

en

very

sm

all p

iece

s of

foo

d yo

u ea

t.

to t

his

stor

y an

d fi

nd o

ut.

Hav

e yo

u ev

er n

otic

ed t

hat

you

can

scra

pe s

ome

whit

e st

uff

off

your

teet

h wh

en y

ou w

ake

up in

the

mor

ning

or

befo

re y

ou g

o to

bed

at

nigh

t? T

hat

stuf

f is

cal

led

plaq

ue.

That

’s wh

ere

the

bact

eria

live

.Pl

aque

is k

ind

of li

ke a

net

tha

the

lps

the

bact

eria

cat

ch a

nd h

old

on

to f

ood

for

them

to

eat.

26

3

Master 4.1c

When you eat and drink som

ething, the bacteria that live on and around

Polar bears live in the icy, northern your teeth and gum

s eat tiny bits of part of the world.

the food that is in your mouth. They

They eat meat like fish and seals.

even have ways to save some of the

They make baby polar bears.

food to come back and snack on

All polar bears poop.

later!

4

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in your teeth.produce acid that can cause cavitieshealthy, but som

e of the bacteriaSom

e of the bacteria help you stay

25

Master 4.1d

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Wha

t ha

ppen

s to

the

aci

d th

e

bact

eria

pro

duce

?

If t

he a

cid

stay

s on

you

r te

eth,

it

can

mak

e ho

les

in y

our

teet

h. H

ere

is h

ow it

wor

ks.

Sinc

e th

e da

y yo

u we

re b

orn,

di

ffer

ent

kind

s of

bac

teri

a ha

ve

lived

in y

our

mou

th—

and

in e

very

pers

on’s

mou

th. T

he b

acte

ria

are

very

, ver

y, v

ery,

ver

y ti

ny. Y

ou

cann

ot s

ee t

hem

wit

h yo

ur e

yes.

24

Master 4.1e

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6 23

Master 4.1f

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So le

t’s r

evie

w.

Gerb

ils li

ve in

bur

rows

in h

igh

dese

rts

and

prai

ries

. Ba

cter

ia li

ve in

you

r m

outh

. Th

ey e

at s

eeds

and

par

ts o

f pl

ants

. So

me

of t

hem

eat

wha

t yo

u ea

t.

They

mak

e ba

by g

erbi

ls.

They

mak

e ot

her

bact

eria

. A

ll ge

rbils

poo

p.

Som

e ba

cter

ia p

rodu

ce a

cid.

In

you

r M

OU

TH?

Yes,

bac

teri

a pr

oduc

e ac

id in

you

r m

outh

.

22

7

Master 4.1g

Guppies live in ponds. W

ell, other animals, like polar bears,

They eat mosquito larvae and other

gerbils, guppies, and earthworms,

tiny bugs. poop. But, what is poop, really? W

hat They m

ake baby guppies. we call “poop” is a waste product. A

ll A

ll guppies poop. anim

als produce some kind of waste

8

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bacteria’s waste product, or its poop.duce an acid. The acid is the eat. A

fter they eat, bacteria pro-use all the parts of the foods theyproduct because their bodies cannot

21

Master 4.1h

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So, b

acte

ria

live

in y

our

mou

th.

Som

e of

the

m e

at w

hat

you

eat.

They

mak

e ot

her

bact

eria

.

Do

the

bact

eria p

oop?

In y

our

MOUTH

?

20

Master 4.1i

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they get sweet things to eat.They m

ake even more bacteria when

These bacteria do make other bacteria.

19

Master 4.1j

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.

Bact

eria

live

in y

our

mou

th.

Eart

hwor

ms

live

in t

he s

oil.

Som

e of

the

m e

at w

hat

you

eat.

Th

ey e

at d

ecay

ing

stuf

f in

the

dir

t.

They

mak

e ba

by e

arth

worm

s.

All

eart

hwor

ms

poop

.

Do

they

mak

e ot

her

bact

eria?

18

11

Master 4.1k

mouth?

Are you sure?

12

What are bacteria doing in m

yM

OUTH

?I have bacteria living in m

yW

ait a minute!

Bacteria live in your mouth.

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Master 4.1l

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.

Som

e ba

cter

ia e

at w

hat

you

eat.

They

eat

pea

nut

butt

er a

nd j

elly

sa

ndwi

ches

,

Just

like

mos

t ki

ds, t

he b

acte

ria

in

your

mou

th a

re r

eally

goo

d at

eat

ing

cand

y!

But,

do

you

know

wha

t th

ey a

re

real

ly g

ood

at e

atin

g?

mac

aron

i and

che

ese,

and

16

pizz

a.

Master 4.1m

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Some bacteria live where it is

Some of those bacteria

live in your mouth.

dark

and warm

and wet. W

hat do you think they eat?

15

Master 4.1n