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Life science

Grade 1, Unit 1L.2

Changes to organisms over time

Unit 1L.2: Changes to organisms over time

Changes in ourselves and

animals

Changes in the environment

Skills you will learn:

Observing.

Estimating.

Data collecting.

Living things

By the end of this unit you should:

Recognize that the appearances of some

organisms changes over time.

Describe how the appearance of some common

organisms change over time.

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Life science

Grade 1, Unit 1L.2

Changes to organisms over time

What do you know about living things?

Discuss the following with your teacher:

• How do we know if something is alive?

• What can you name that is alive?

• What do living things need to stay alive?

Here are some clues:

Living things grow

Living things breathe to stay alive

Living things drink water to stay alive

Living things eat to stay alive

Living things reproduce

Animals,plants and humans are living things.

1.4.1

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Life science

Grade 1, Unit 1L.2

Changes to organisms over time

How could you tell if something is living or

nonliving?

Activity: Look at the pictures. Are they living things?

Write what they are in the boxes below the pictures.

The words in the box might help you.

Living Non-Living

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Life science

Grade 1, Unit 1L.2

Changes to organisms over time

Living things grow and change; they need food, water

and air.

Nonliving things do not grow and change; they do not

need food, air and water.

Living Things

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Life science

Grade 1, Unit 1L.2

Changes to organisms over time

Sorting Activity:

Sort the pictures to show if they are living or non

living things.

Activity: Living Things Non-living things

Cut these pictures out below and stick in the right

section of the table above!

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Life science

Grade 1, Unit 1L.2

Changes to organisms over time

HAPPY SAD CONFUSED

ANGRY EXCITED EXHAUSTED

Use the picture above to help you answer the following

questions:

1. How do you feeling today?

_______________________________________

2. How do you feel when you go home after school?

3. How do you feel on Friday morning?

4. Do you feel the same every day?

_______________________________________

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Life science

Grade 1, Unit 1L.2

Changes to organisms over time

As you can see your feelings change, living things

change physically – you can see the changes but they

take time!

For example: day and night. Can you mention others

things that change?

Activity: Sing this song aloud in the class and answer the

questions:

Little brown seeds so small and

round, are sleeping quietly

underground.

Down come the raindrops,

sprinkle, sprinkle, sprinkle.

Out comes the rainbow,

twinkle, twinkle, twinkle.

Little brown seeds way down below,

up through the earth they

grow, grow, grow.

Little green leaves come one by one.

They hold up their heads

and look at the sun.

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Life science

Grade 1, Unit 1L.2

Changes to organisms over time

Questions:

1) How does the plant start? ----------------

2) What came down?

-----------------------------------------

3) What came out twinkling?

-----------------------------------------

4) What came up one by one?

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5) What are the green leaves looking at?

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Activity: Circle the correct answer:

1. When we are thirsty, we need ...

a. water b. food c. exercise

2. How often should we eat fruit and vegetables?

a. Every day b. Once a week c. Once a month

3. How often do we need to sleep and rest?

a. Every day b.Once a week c.Once a month

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Life science

Grade 1, Unit 1L.2

Changes to organisms over time

4. What would happen to us if we didn't have any

food or water?

We would die

Nothing would happen to us

We would become ill but then get better

5. It is best to eat ...

as much as possible

the same thing every day

a wide variety of different foods

6. Put number from 1to 5 underneath to show the

correct order in which the plant grows.

Stage of plant

growth

Number

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Life science

Grade 1, Unit 1L.2

Changes to organisms over time

How have you changed since you were born?

Think about the following areas and tell your teacher

what you..

Look like

What you eat

What you can do (walk, crawl, run, ride!)

Activity:

Ask your parents for some

photographs of yourself when

you were a baby till now. Try

and get 4 or 5 photos of yourself

at different stages! (they don’t have to be face shots only!)

Put them in order and make a poster.

Under each picture write down one way you have

changed!

i.e. I can sit, I can ride a bike, I can eat by

myself, I have teeth! etc..

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Life science

Grade 1, Unit 1L.2

Changes to organisms over time

How tall are you? As you can see the older you get the taller you get.

Measure yourself and 2 of your friends using hand

spans then put the number of hand spans in the table

below!

My height (hands span)

Height of

Friend 1: (hand span)

Height of

Friend 2: (hand span)

Today

Next

year

When

you are

20!

Make a prediction in the purple boxes… What was the height of the tallest person in

your class? ___________

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Life science

Grade 1, Unit 1L.2

Changes to organisms over time

Predict the ages of these people! (first one is done

for you).

Summary of changes in humans overtime A human grows from a baby to a child to an adolescent to

an adult. When a baby grows, changes happen in shape, size

and color.

When you become an adult you have your own family which

you look after. Also you look after your parents who will be

old.

Activity: Answer the questions orally in the class

1) Does anyone here have a baby brother or sister?

2) Do babies or little children grow quickly or slowly?

3) What kinds of things cause babies and little kids to grow

quickly?

4) What are the healthy foods we eat to grow quickly?

5) Your teacher will make a Venn diagram on the board and explain

how to you use it. Copy it on your paper, then compare and contrast

between and baby and an adult concerning, movement, feed,

appearance, walking etc..

1y

ADULT BABY

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Life science

Grade 1, Unit 1L.2

Changes to organisms over time

Changes in the environment

Changes in plants with the environment: Look at the picture below, what do you observe?

Plants grow from being small to big plants

with time. When a plant grows, it changes in

shape, size.

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Life science

Grade 1, Unit 1L.2

Changes to organisms over time

Activity: (Project)

Do this experiment in the class:

Plant seeds in a clear plastic cup. You will measure

the growth of the plant. Discuss what it needs to

survive such as:

water , sunlight, soil

Throughout a three-week period observe the

plants growth each week. You can use a piece of

string or simple ruler.

You can complete the following table:

1st week 2nd week 3rd week

Length

Picture

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Life science

Grade 1, Unit 1L.2

Changes to organisms over time

Changes in Animals:

Look at the Oryx and observe:

What are the changes that you see?

Look at the changes in an Oryx overtime from a baby

to an adult. There are changes in size, height and

color.

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Life science

Grade 1, Unit 1L.2

Changes to organisms over time

Changes in a chicken over time:

Look at the changes in the chicken overtime

A chick and then a chicken. It chnages in shapes,

size and color.

Activity:

Color and put the numbers in order:

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Life science

Grade 1, Unit 1L.2

Changes to organisms over time

Changes in a frog over time: Look at the frog

2 3 4

It grows from being an egg to a tadpole to a froglet

then finally a frog.

When frog grows from egg to adult frog, a big

changes happens for it in shapes, size and color.

REAL PICTURES!

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Life science

Grade 1, Unit 1L.2

Changes to organisms over time

Look at the picture and label the stages using the

words below!

Adult Frog, Tadpole, 2 weeks old, 7 weeks old,

Froglet (12 weeks old)

.

. .

.

.

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Life science

Grade 1, Unit 1L.2

Changes to organisms over time

Changes in the butterfly over time:

Look at the butterfly.

It grows from being an egg to a pupa, to a caterpillar

and finally a butterfly.

When it grows from an egg to a butterfly, a big

changes happens in its shapes, size and color.

Activity:

1.Name the different changes of the butterfly by

writing the words underneath the right picture:

butterfly,caterpillar

2. Number the stages in the correct sequence by

writing 1,2,3 and 4 in the boxes next to the pictures

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Life science

Grade 1, Unit 1L.2

Changes to organisms over time

Key words Same

Different

Frog

Tadpole

froglet

Caterpillar

Pupa

Chicken

Key terms

Living things changes overtime

with environment.

Appearance of the common

organism changes as they age.

Day and night are caused by

moving of the sun and moon

every day, every week, every

month, every year.

3. Colour the pictures !

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Life science

Grade 1, Unit 1L.2

Changes to organisms over time

Day and Night

ماوات واألرض واختالف الليل والنهار إن في خلق السVerily! In the creation of the heavens and the earth, and in the changes of night and day

(Al Baqrah/164)

Look at the picture below:

Activity: Ask your friend…

How do you know it is time to go to sleep?

What happens at night?

How is night time different from the daytime?

In the picture above and below which part is

night ? and which is day? Why?

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Life science

Grade 1, Unit 1L.2

Changes to organisms over time

When there is no sun and it is dark we know it is

time to sleep

At night there is a moon in the sky, in the

daytime there is sun in the sky.

What gives us daylight?

The sun gives us daylight.

What do you see in the night sky?

We see the moon in the night sky, it

reflects the light from the sun and gives

us some light at night.

Look at the pictures, when were they taken?

During the day there is sun in the sky.

During the night there is moon in the sky.

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Life science

Grade 1, Unit 1L.2

Changes to organisms over time

Activity: Projects in groups –PAINTING!

Sun Art

Paint a paper plate yellow. When dry,

add facial features with a marker. You

may even glue yellow strips of paper

around the edges for rays, or use yellow

string!

Moon Art

Cut a paper plate in any shape for the

moon. You can have them paint the moon a

very light blue or gray.

Night Art

Draw a picture on black paper

With chalk or white crayons.

Flashlight Fun

Bring in flashlights. Turn off the lights and

let them shine their flashlights.

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Life science

Grade 1, Unit 1L.2

Changes to organisms over time

The Four Seasons and their effect on Organisms

Do you know the name of the four seasons?

Look at the picture below – which picture shows

which season?

Write you answers NEATLY in the boxes below

The answers are below in REVERSE!

nmutua

remmus gnirps retniw

DuringWhat

Season do you

think this picture

was taken??

Why?

What time do you

think this picture

was taken!?

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Life science

Grade 1, Unit 1L.2

Changes to organisms over time

Some animals change how they look according to the

seasons! Look at the pictures below – how have they

changed? Discuss with your teacher what the changes

are and why? ماوات واألرض وما بث فيهما مه دابة ومه آياته خلق الس

And among His Signs is the creation of the heavens and the earth, and whatever moving (living) creatures He has dispersed in them both (As Shura/42)

Animals develop thicker fur to keep warm in winter

The fur also changes colour to match the surrounding

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Life science

Grade 1, Unit 1L.2

Changes to organisms over time

Q1) Write the numbers in order: from morning to

evening..(1, 2, 3, 4)

night sunrise sunset day

_____ _____ _____ _____

Q2) a. Match the pictures showing how the animals

have changed using arrows!

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Life science

Grade 1, Unit 1L.2

Changes to organisms over time

b. what two ways have the animals changed and why?

__________________________________________

__________________________________________

Q3) a.What do we see in the Sky at night?

_________________________________

b. What do we see in the Sky during the day?

_________________________________

Key words:

Air

Water

Soil

Sunlight

Grow

Living things

Breathe

Daylight

Sunshine

Dark

Key ideas:

Plants, animals, humans

need water, air, sunlight,

food to grow and stay

alive.

Plants, animals, humans

are living things.

When the sun rises it is

day.

When the sun sets it is

night.