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Transcript of Plants
Water and minerals
go from the roots through the stem , to the leaves.
Food goes from the leaves , through the stem, to
other parts of the plants
They contain the reproductive organs of the plant.
LEAVES are where the plants make food. They take
from air to create
Some trees have
leaves all the year
and they are called,
lose their leaves in autumn
and grow new in spring, they are called
what are the characteristics of plants?
They anchor the plant to the ground.
They absorb water and minerals from the soil.
Plants are living things.
They have the following characteristics
They make their
cannot move by themselves
, but they
to the environent.
They have these main parts:
What do roots, stems and leaves look like?
Roots can be thick or hairy.
Carrot plants have a thick root.
Onion plants have hairy roots.
The Stem can be woody or green
stems are hard and rigid, for
example, the stem of an
stems are soft and flexible,
for example, the stem of
Leaves have two parts:
Leaves can be different shapes:
, like Lemon leaves.
, like Chestnut trees leaves.
, like Apple tree leaves.
, like Pine tree leaves.
HOW DO SEEDS AND FRUIT FORM FROM A FLOWER?
Some plants have
The flowers contain the
form inside the flower.
forms around the seeds
is formed by petals.
It's colourful to attract insects.
It protects the reproductive organs
is the male reproductive organ
is formed by
It protects the rest of the flower.
is the female reproductive organs.
is sticky to catch pollen grains.
contains the ovules.
The pollen grain
join to make a seed.
developes into a
, for example,
There are also
, for example pears or
HOW CAN WE CLASSIFY PLANTS?
There are many different types of plants. According to its type of stem, a plant can be: a
are plants with a woody stem, called a trunk
grow out from the trunk high above the ground.
always have leaves because they make new leaves every year.
lose all their leaves in autumn. New leaves grow in spring
live for thousands of years
Some trees like a
are taller than 50m.
Some trees, like
, are wide as a building.
, like lavender, are plants with
but without trunk. The branches grow near the
, like wheat or clover, are small plants. Their stems are
green, soft and flexible
WHAT ARE PLANTS USED FOR?
Since ancient times we have used plants as food.
We have also used wood from trees as fuel,for building and to make paper.
from the flowers of cotton plants. This is used for make clothes
from the trunks and branches of trees.
This is used to make buildings and furniture, and to make paper.
from the trunks of some trees. This process damages the tree.
We eat a variety of
We eat many meals with vegetables
We cook with
are used to make bread.
Plants are our main source of
. We eat different parts of plants: roots, stems, leaves, flowers, fruits and seeds.
Different parts of some plants, like camomille, are used to make medicines.
Every day scientists discover new uses for plants. It is important for the future to protect plants and research new uses.
DIfferent parts of some plants, like roses or orange blossom, are used to make perfume, soap and cosmetics.
, like Oak tree leaves.
, like Maple tree leaves.
What is the life cycle
of a plant?