Скачать или смотреть concept 1.1 - lesson 1 - plants needs - science grade 5 / first term علوم 5 ابتدائي / الدرس الاول

concept 1.1
plants needs
lesson 1
Do you know how plants grow?
Watch this video
We sow the seeds of plants in the ground
And we provide it with water, air, sunshine and enough space to grow
Watch what will happen with the days
The seeds begin to grow in the soil and then the plants are released into the air
How do the structures of a plant use water, air and light to perform life of processes ?
Plants have roots, stem, leaves and sometimes flowers or fruit.
Plants use these specialized structures to obtain their basic needs of water and light.
Each part of a plant has its own function, where the roots help the plant get and nutrients from the soil and the other parts of the plant help it survive.
What Do You Already Know About Plant Needs?
Plants and Animals
Plants need water, air, sunlight and nutrients from soil as basic needs to live and grow.
Water and air are basic needs of plants, animals and humans.
Humans and other animals need to eat food to gain energy and nutrients to live and grow.
Most plants get nutrients from soil and make their own food through a process known as "photosynthesis" that takes place in the plant leaves.
Plant Needs
Plants need some resources to live and grow such as:
Nutrients.
Water.
Carbon dioxide gas (a gas found in the air).
Sunlight.
Soil may not have been included as a basic plant need because
Some plants grow on other plants instead of having roots in the soil.
Some plants only grow in the water.
remember that from grade 4
Plants and Food
Plants make their own food which is a type of sugar that provides the plant with energy to grow.
Plants make their food (sugar) in their leaves by means of photosynthesis process, where:
The roots of a plant absorb water and nutrients from the soil.
Water and nutrients are carried from the roots to the leaves through the stem.
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