Grade 4: Chapter 1

Signs Grateful Chapter one.

Plants the objective of learning this chapter is that in

this unit you should be able to explain the reason

plants are living things, explain the usage of plants and

explain the parts and functions of a plan.

Plants are living things.

Plants have life plants grew.

Let's explore.

Plants of life.

A seat has a tiny plan inside A plan can

breathe. Isn't it?

It exciting to know that a mysterious loss of life

at work before your very eyes.

We can usually recognize whether a thing is a living

or not.

You know that living things grow reproduce themselves and need

food, air and water to live.

They are also different from non living things.

Plant's lifecycle.

It starts from a seed to seedling to a plan.

Plants breathe.

You can try this experiment begin by adding room temperature

water into a clear glass.

Place it it in a sunny window.

Place a freshly picked leaf into the glass and leave

it it undisturbed for a few hours after 2-3 hours

you may check the changes.

You will notice bubbles.

The shoes, plants, brick plants grow plants grow in all

sizes and shapes.

Plants need air, light water and food to grow.

Some plants such as violet may be very small.

Others such as crease are sometimes very large plants grow

almost everywhere in the world around us.

Even besides city streets.

Let's look at some examples.

Yeah. Plants need good soil, water, food, air and sunlight

to grow.

Let's look at the use of plants.

Plants are useful food shelter, enjoyment of their beauty and

for country and ST simple and even medicine.

Food plants such as vegetables and fruits are rich invited

me that helps the growth of human and animals shelter.

For hundreds and hundreds of years.

Man has used the bark, the leaves and the wood

of trees from the forest to make shelter for himself.

Animals use trees as their habit id enjoyment.

Besides besides giving us shelter, plants are useful in giving

us enjoyment by planting plants in homes or enjoying the

view of plants.

It helps human to have relief from their stressful life.

Let's look at some example of country and state symbols

using flowers, Malaysia, hibiscus, us rose and japan cherry blossom

medicine. These are some example of medicine.

All plants for example indian barrage is used for flu

and cough curry leaves and the other plants are good

for diabetes and fight fights for cancer.

Parts and functions of a plan.

Plants are living things they have life and they go

through certain stages of growth.

They serve many purpose.

Individual plants have parts that make up their total structure.

Those parts are necessary to their life functions, living growing

reproducing and so on.

The important part of a plan that you will study

in this unit.

Our roots, stems, leaves, flowers and fruits, roots and roots

has roots help the plan to absorb water and nutrients

from the soil.

The root system of a plan is in charge of

the water supply.

The tips of the roots are always reaching out to

collect water and they also collecting minerals behind the growing

part of the route has they reach out and grasp

the soil, soaking up moisture and minerals through their thin

walls stem.

The stems are very important part of appliance.

The water moves up through the tubes in the stem

of the plant and food moves down.

Look at destroying of a stem.

We see tubes that are formed from living cells in

the growing stem.

The tubes are joined to the leaves through the trunk.

Our stem inside the stem are the tubes and the

but the outside is made up of bark and wood.

The but is the future leaf and flower within the

back is the growing plan.

Let's try this experiment.

You need fresh celery stalk with leaves on top, a

glass of water, red ink, read food calorie, you can

use blue at night.

So put the red ink or food coloring in the

glass. Water set the salary stop in the glass now

cut across the stock with the knife.

Wait and let's see after a few days what will

happen to the salary stock.

After a few days you will notice.

Then the water, the colored water went up through the

tubes of the salary plan.

The still the salary stock dried up and you can

see the color the red or the blue ink.

This experiment proves that the water moves up.

Truth tubes in the stem of the plant and changed

the color of the plant.

The stand carries water and minerals to all parts of

the plan leaf.

The leaf takes the foot and minerals chlorophyll in the

leaf helps make different kinds of food.

Some food is thought in the fruit of the plant,

some is thought in the stand and some in the

root. The food is useful to the plan when it

is eaten by an animal or human, the animal or

human gets the food and energy from the plant.

The way by which plants make food is called photosynthesis

means putting something together in sunlight to make food photosynthesis

is when the leaves are working to make food, they

are making sugar then changes the sugar into other kinds

of food, such as starch, fats, proteins and vitamins.

Most leaves has only two parts the stem and the

blade, the stand holds the leaf on the plan and

the plate is the food maker.

Besides helping to make food.

If no plants or animals, our lives were were in

the world.

If no plants or lives were in the world, everything

would die.

When we breathe, We exhale carbon dioxide into the end.

Plants take this gas and separate it into carbon and

oxygen. Then the plant combines it with the water in

the leaf.

While this process is going on.

The leaves are sending out oxygen for animals and us

to breathe.

Yeah, yeah.

Flowers as you study this diagram of flour carefully, you

will see that it is attached to a stem.

It is attached to the stand by the enlarged part

of the stand called the receptacle receptacle.

The samples protect the delicate inner part of the flower

bud. The samples are usually green and when the blood

gets older they may drop off.

The patterns usually show bright colors.

These bright colors attracts insects and birds that pollinate the

flower. A flower me Have only one statement or it

may have more than 1000.

A statement is made up of a long narrow stock

with an enter at at the top which contains sack.

The enter set hold the Polin.

When the sex burst, they released the Poland.

Let's see the pistol seats developed in the pistol.

Different kinds of flowers may have different numbers of pistols.

Each pistol usually has three parts the stigma the style

and the ovary.

The stigma is sticky, so Poland was stick on to

it. The Poland moves down to the Poland tube to

the ovary.

The purpose of flour is to reproduce and to make

more flowers of the same kind fruit.

Some plants produce many kinds of fruit.

Scientists tells us that a fruit is a container with

the seats inside of it.

Mhm. Some seats have a soft fleshy wall around them.

They are called varies seats with soft, fleshy wall around

them, such as grapes and tomatoes, sits surround by fleshy

and leathery rings are like the oranges and grapefruit.

People, berries with heart bring such as cucumber nut, Fruit

with one seat, such as walnut home apples.

Pears are fleshy fruits called poems.

Yeah, these are part of a plan and their functions.

Grade 4: Chapter 1

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