living things and their life · pdf filecomplete the life processes shown in each picture on...

Living Things and Their Life Processes

Name: Class: Date:

Consolidation Worksheet 1What Are the Life Processes in Humans and Other Animals?Complete the life processes shown in each picture on the left. Then match them to the correct sentences on the right. The first one has been done for you.

Living things do this so that they will not become extinct.

Animals need to eat food and drink water to survive.

Animals do this to look for food and shelter, and to escape from danger.

A living thing gets bigger and heavier over time.

Living things respond to changes around them.

The process by which nutrients taken in by animals are converted to energy.

The process by which waste materials produced by the body are removed.

M

R

S

N

E

R

G

ovement

78 © 2012 Alston Publishing House Pte LtdAdditional Teacher’s Resources


Name: Class: Date:

Consolidation Worksheet 1What Are the Life Processes in Humans and Other Animals?Complete the life processes shown in each picture on the left. Then match them to the correct sentences on the right. The first one has been done for you.

Living things do this so that they will not become extinct.

Animals need to eat food and drink water to survive.

Animals do this to look for food and shelter, and to escape from danger.

A living thing gets bigger and heavier over time.

Living things respond to changes around them.

The process by which nutrients taken in by animals are converted to energy.

The process by which waste materials produced by the body are removed.

M

R

S

N

E

R

G

ovement


Name: Class: Date:

Consolidation Worksheet 2What Are the Life Processes in Plants?1. Tick (ü) the boxes next to the statements that are TRUE.

Humans and other animals Life processes Plants

Growth

Reproduction

Sensitivity

a. Plants can move from place to place.

b. Plants can make their own food.

c.Plants undergo important life processes: nutrition, growth, sensitivity, movement, respiration, excretion and reproduction.

d. Plants need sunlight and water.

e. Plants do not increase in size, height and weight as they grow.

f. Plants are sensitive to changes in their surroundings.

g. All plants reproduce using seeds.

2. Match the pictures to the life processes that they show. One has been done for you.

© 2012 Alston Publishing House Pte Ltd Science SMART Teacher’s Guide Grade 3 79


Name: Class: Date:

Consolidation Worksheet 3How Can We Tell Living Things From Non-living Things?1. Fill in the blanks.

A l t can carry out important l p

— nutrition, growth, movement, sensitivity, respiration, excretion and

reproduction. A n -l t cannot carry all

these out.

2. The picture shows an Amoeba. It is so tiny that we need a microscope to see it.

Study the information about the Amoeba given in the table below.

Life processes in the Amoeba True False

a. It needs food and water.

b. It cannot move on its own.

c. It responds to changes in its surroundings.

d. It is able to reproduce.

e. It is unable to grow.

f. It respires and excretes.

Based on the information above, is the Amoeba a living thing or a non-living thing? Why?



Name: Class: Date:

Consolidation Worksheet 3How Can We Tell Living Things From Non-living Things?1. Fill in the blanks.

A l t can carry out important l p

— nutrition, growth, movement, sensitivity, respiration, excretion and

reproduction. A n -l t cannot carry all

these out.

2. The picture shows an Amoeba. It is so tiny that we need a microscope to see it.

Study the information about the Amoeba given in the table below.

Life processes in the Amoeba True False

a. It needs food and water.

b. It cannot move on its own.

c. It responds to changes in its surroundings.

d. It is able to reproduce.

e. It is unable to grow.

f. It respires and excretes.

Based on the information above, is the Amoeba a living thing or a non-living thing? Why?


Name: Class: Date:

Fun and Games Find the Hidden Message!

Cross out the boxes as instructed. You will be left with eight words that form a sentence.

A B C D

1 ANIMALS NEED GROWTH EXCRETION

2 NUTRITION WATER MOVEMENT AND

3 MOVEMENT SENSITIVITY FOOD TO

4 STAY RESPIRATION ALIVE REPRODUCTION

Instructions:

Column A Cross out every box that does not contain the letter ‘A’.

Row 1 Cross out every box that contains only one vowel.

Column D Cross out every box where the fourth letter is an ‘R’.

Row 2 Cross out every box that contains the letter ‘O’.

Column B Cross out every box that contains the letter ‘S’ twice.

Row 4 Cross out every box that contains both the letters ‘I’ and ‘O’.

a. Write down the sentence that can be made from the eight words left.

b. What two words describe the activities you have crossed out?

L P



Name: Class: Date:

Exam Practice

Tom set up two aquariums, X and Y. First, he filled two similar tanks with equal amounts of water. He then placed five fishes in each tank. He fed the fishes in both tanks with the same amount of food. He also placed an air pump in Tank X.

The next day, he observed that the fishes in Tank Y were swimming near the surface of the water.

a. Why were the fishes in Tank Y swimming near the surface of the water? [1 mark]

b. Tom changed the water in both tanks and removed three of the fishes from Tank Y. The remaining two fishes stopped swimming near the surface of the water. Why were they able to do so? [1 mark]

c. What does this tell you about a characteristic of living things? [1 mark]

d. Name three variables that Tom kept the same to make his experiment a fair one. [1 mark]

Process skills: Observing, Comparing, Analysing

Hint:What did Tom place in Tank X but not in Tank Y? What was missing in the water in Tank Y

that the fishes needed?

X YAir pump


Ans

wer

s to

Add

ition

al Te

ache

r’s R

esou

rces

Ans

wer

s to

Add

ition

al Te

ache

r’s R

esou

rcesLiving Things and Their Life Processes

Name: Class: Date:

Exam Practice

Tom set up two aquariums, X and Y. First, he filled two similar tanks with equal amounts of water. He then placed five fishes in each tank. He fed the fishes in both tanks with the same amount of food. He also placed an air pump in Tank X.

The next day, he observed that the fishes in Tank Y were swimming near the surface of the water.

a. Why were the fishes in Tank Y swimming near the surface of the water? [1 mark]

b. Tom changed the water in both tanks and removed three of the fishes from Tank Y. The remaining two fishes stopped swimming near the surface of the water. Why were they able to do so? [1 mark]

c. What does this tell you about a characteristic of living things? [1 mark]

d. Name three variables that Tom kept the same to make his experiment a fair one. [1 mark]

Process skills: Observing, Comparing, Analysing

Hint:What did Tom place in Tank X but not in Tank Y? What was missing in the water in Tank Y

that the fishes needed?

X YAir pump

Liv

ing

Th

ings

an

d T

hei

r L

ife

Pro

cess

es

Nam

e:

C

lass

:

Dat

e:

Co

nso

lid

atio

n W

ork

shee

t 1W

ha

t A

re t

he

Life

Pro

cess

es in H

um

ans

and

Oth

er A

nim

als

?C

ompl

ete

the

life

proc

esse

s sh

own

in e

ach

pict

ure

on th

e le

ft. T

hen

mat

ch th

em to

the

corr

ect s

ente

nces

on

the

right

. The

firs

t one

has

be

en d

one

for

you.

Livin

g th

ings

do

this

so th

at th

ey

will

not b

ecom

e ex

tinct

.

Ani

mal

s ne

ed to

eat

food

and

dr

ink

wat

er to

sur

vive

.

Ani

mal

s do

this

to lo

ok fo

r fo

od

and

shel

ter,

and

to e

scap

e fr

om d

ange

r.

A li

ving

thin

g ge

ts b

igge

r an

d he

avie

r ov

er ti

me.

Livin

g th

ings

res

pond

to

chan

ges

arou

nd th

em.

The

proc

ess

by w

hich

nut

rient

s ta

ken

in b

y an

imal

s ar

e co

nver

ted

to e

nerg

y.

The

proc

ess

by w

hich

was

te

mat

eria

ls pr

oduc

ed b

y th

e bo

dy a

re r

emov

ed.

M R S N E R G

ovem

ent

espi

ratio

n

ensit

ivity

utrit

ion

xcre

tion

epro

duct

ion

row

th

Liv

ing

Th

ings

an

d T

hei

r L

ife

Pro

cess

es

Nam

e:

C

lass

:

Dat

e:

Co

nso

lid

atio

n W

ork

shee

t 2W

ha

t A

re t

he

Life

Pro

cess

es in P

lants

?1.

Ti

ck (ü

) th

e bo

xes

next

to th

e st

atem

ents

that

are

TRU

E.

Hum

ans

and

othe

r an

imal

sLi

fe p

roce

sses

Plan

ts

Gro

wth

Repr

oduc

tion

Sens

itivi

ty

a.Pl

ants

can

mov

e fr

om p

lace

to p

lace

.

b.Pl

ants

can

mak

e th

eir

own

food

.

c.Pl

ants

und

ergo

impo

rtan

t life

pro

cess

es: n

utrit

ion,

gro

wth

, se

nsiti

vity

, mov

emen

t, re

spira

tion,

exc

retio

n an

d re

prod

uctio

n.

d.Pl

ants

nee

d su

nlig

ht a

nd w

ater

.

e.Pl

ants

do

not i

ncre

ase

in s

ize, h

eigh

t and

wei

ght a

s th

ey g

row

.

f.Pl

ants

are

sen

sitiv

e to

cha

nges

in th

eir

surr

ound

ings

.

g.A

ll pl

ants

rep

rodu

ce u

sing

seed

s.

2.

Mat

ch th

e pi

ctur

es to

the

life

proc

esse

s th

at th

ey s

how

. One

has

be

en d

one

for

you.

✓ ✓ ✓ ✓


Livi

ng T

hing

s an

d

Thei

r Li

fe P

roce

sses

Ans

wer

s to

Add

ition

al Te

ache

r’s R

esou

rces

Ans

wer

s to

Add

ition

al Te

ache

r’s R

esou

rces

Liv

ing

Th

ings

an

d T

hei

r L

ife

Pro

cess

es

Nam

e:

C

lass

:

Dat

e:

Co

nso

lid

atio

n W

ork

shee

t 3H

ow

Ca

n W

e Te

ll Li

ving

Thin

gs

From

N

on-l

ivin

g T

hin

gs?

1. Fil

l in

the

blan

ks.

A

l t

can

car

ry o

ut im

port

ant l

p

— n

utrit

ion,

gro

wth

, mov

emen

t, se

nsiti

vity

, res

pira

tion,

exc

retio

n an

d

repr

oduc

tion.

A n

-l t

cann

ot c

arry

all

thes

e ou

t.

2.

The

pict

ure

show

s an

Am

oeba

. It i

s so

tiny

that

we

need

a m

icro

scop

e to

see

it.

St

udy

the

info

rmat

ion

abou

t the

Am

oeba

give

n in

the

tabl

e be

low

.

Life

pro

cess

es in

the

Am

oeba

True

False

a.It

nee

ds fo

od a

nd w

ater

.

b.It

can

not m

ove

on it

s ow

n.

c.It

res

pond

s to

cha

nges

in it

s su

rrou

ndin

gs.

d.It

is a

ble

to r

epro

duce

.

e.It

is u

nabl

e to

gro

w.

f.It

res

pire

s an

d ex

cret

es.

Ba

sed

on th

e in

form

atio

n ab

ove,

is th

e A

moe

ba a

livi

ng th

ing

or a

no

n-liv

ing

thin

g? W

hy?

ivin

ghi

ngife

roce

sses

hing

oniv

ing

The

Am

oeba

is a

livi

ng th

ing.

It c

an c

arry

out

all

the

life

proc

esse

s:

nutr

ition

, mov

emen

t, se

nsiti

vity

, rep

rodu

ctio

n, g

row

th, r

espi

ratio

n

and

excr

etio

n.

✓ ✓ ✓ ✓

✓ ✓

Liv

ing

Th

ings

an

d T

hei

r L

ife

Pro

cess

es

Nam

e:

C

lass

:

Dat

e:

Fu

n a

nd

G

ames

Fin

d t

he

Hid

den

Mes

sage

!

Cro

ss o

ut th

e bo

xes

as in

stru

cted

. Yo

u w

ill be

left

with

eig

ht w

ords

that

fo

rm a

sen

tenc

e.

AB

CD

1A

NIM

ALS

NEE

DG

ROW

THEX

CRE

TIO

N

2N

UTRI

TIO

NW

ATER

MO

VEM

ENT

AN

D

3M

OV

EMEN

TSE

NSI

TIV

ITY

FOO

DTO

4ST

AYRE

SPIR

ATIO

NA

LIV

ERE

PRO

DUC

TIO

N

Inst

ruct

ions

:

Col

umn

AC

ross

out

eve

ry b

ox th

at d

oes

not c

onta

in th

e le

tter

‘A’.

Row

1C

ross

out

eve

ry b

ox th

at c

onta

ins

only

one

vow

el.

Col

umn

DC

ross

out

eve

ry b

ox w

here

the

four

th le

tter

is an

‘R’.

Row

2C

ross

out

eve

ry b

ox th

at c

onta

ins

the

lette

r ‘O

’.

Col

umn

BC

ross

out

eve

ry b

ox th

at c

onta

ins

the

lette

r ‘S

’ tw

ice.

Row

4C

ross

out

eve

ry b

ox th

at c

onta

ins

both

the

lette

rs ‘I

’ and

‘O’.

a.

Writ

e do

wn

the

sent

ence

that

can

be

mad

e fr

om

the

eigh

t wor

ds le

ft.

b.

Wha

t tw

o w

ords

des

crib

e th

e ac

tiviti

es y

ou h

ave

cros

sed

out?

L

P

Ani

mal

s ne

ed w

ater

and

food

to s

tay

aliv

e.

ifero

cess

es


Ch

ap

ter 1

Ans

wer

s to

Add

ition

al Te

ache

r’s R

esou

rces

Liv

ing

Th

ings

an

d T

hei

r L

ife

Pro

cess

es

Nam

e:

C

lass

:

Dat

e:

Ex

am P

ract

ice

Tom

set

up

two

aqua

rium

s, X

and

Y. F

irst,

he fi

lled

two

simila

r ta

nks

with

equ

al

amou

nts

of w

ater

. He

then

pla

ced

five

fishe

s in

eac

h ta

nk. H

e fe

d th

e fis

hes

in

both

tank

s w

ith th

e sa

me

amou

nt o

f foo

d. H

e al

so p

lace

d an

air

pum

p in

Tan

k X.

The

next

day

, he

obse

rved

that

the

fishe

s in

Tan

k Y

wer

e sw

imm

ing

near

the

surf

ace

of th

e w

ater

.

a.

Why

wer

e th

e fis

hes

in T

ank

Y sw

imm

ing

near

the

surf

ace

of th

e w

ater

? [1

mar

k]

b.

Tom

cha

nged

the

wat

er in

bot

h ta

nks

and

rem

oved

thre

e of

the

fishe

s fr

om T

ank

Y. T

he r

emai

ning

two

fishe

s st

oppe

d sw

imm

ing

near

the

surf

ace

of th

e w

ater

. Why

wer

e th

ey a

ble

to d

o so

? [1

mar

k] c.

W

hat d

oes

this

tell

you

abou

t a c

hara

cter

istic

of l

ivin

g th

ings

? [1

mar

k] d.

N

ame

thre

e va

riabl

es th

at T

om k

ept t

he s

ame

to m

ake

his

expe

rimen

t a

fair

one.

[1

mar

k] P

roce

ss s

kil

ls: O

bser

ving

, Com

parin

g, A

naly

sing

Hin

t:W

hat

did

Tom

pla

ce in

Tan

k X

bu

t no

t in

Tan

k Y

? W

hat

was

m

issi

ng in

the

wat

er in

Tan

k Y

th

at t

he f

ishe

s ne

eded

?

XY

Air

pum

p

They

wer

e tr

ying

to g

et m

ore

diss

olve

d ox

ygen

.

Ther

e is

enou

gh o

xyge

n di

ssol

ved

in th

e w

ater

for

the

two

fishe

s.

Livin

g th

ings

nee

d ox

ygen

.

The

size

of th

e ta

nks,

the

amou

nt o

f foo

d, a

nd th

e am

ount

of w

ater

in

each

tank

.


Livi

ng T

hing

s an

d

Thei

r Li

fe P

roce

sses

Additional Teacher’s Resources

GlossaryChapter 1: Living Things and Their Life Processes

Chlorophyll The green pigment in plants that traps sunlight and makes it possible for plants to make food

Energy The strength to do work

Excretion The process of passing waste materials out from the body

Extinct No longer existing

Fern Aflowerlessandseedlessplantthathaslarge,delicateleavesandreproduces by spores

Flowering plant Aplantthatproducesflowersandfruits

Fruit Thereproductivepartofafloweringplantthatcontainstheseed

Growth An increase in size

Life process Anactivitythatisimportanttokeeplivingthingsalive

Moss Atypeoftinygreenplantthathassmallleavesandnoflowers

Movement A change in place or position

Non-flowering plant Aplantthatdoesnotproduceflowersandfruits

Nutrition Theprocessbywhichalivingthingtakesinfoodandusesitforgrowth and health

Reproduction The process in which a young is produced from its parents

Respiration The process in which energy is released when digested food and oxygen mixes with the blood

Respond To act as a reaction to something

Seed An object produced by the plant by which a new plant can grow

Sensitivity Theabilitytorespondtostimuli,changesordifferences

Spore Acellproducedbysomeplants(suchasfungi,algaeand non-floweringplants)thatislikeaseedandcanproducea new plant

Stomata Tinyopeningsonleavesthroughwhichgasesandwatervapourpass

86 © 2012 Alston Publishing House Pte Ltd

Ch

ap

ter 1

living things and their life · pdf filecomplete the life processes shown in each picture on...

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