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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?
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3) What came out twinkling?
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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.