The aim of this lesson is to provide a simple explanation about Plants as a Science introduction to students learning English as a second language.

So here goes!

The simple truth is that we need plants!

Plants are a living organism on earth just like animals and humans.

They provide us with food, raw materials, medicine, clothing and other things for our daily needs.

Trees, flowers, shrubs, hedgerows, grass, vines, fern and moss are all just examples of plants all around us in the world of botany.

The principle parts of a plant are the roots, stem and the leaves.

Plants can be grown in soil or in water.

The roots of a plant usually have a fixed position where they can absorb water and minerals.

The stem rises upright from the roots and provides branches to support leaves, flowers and fruit.

The leaf is the food factory of the plant.

It uses natural sunlight from the sun, carbon dioxide from the air plus minerals and water from the soil to make its own food.

This process is called photo-synthesis.

It generates a special chemical called chlorophyl which makes the food and keeps the leaf green.

Flowers and fruit are then the products of the ‘food factory’.

If the plants are well nurtured, then they will continue to reproduce.

Quite often, the soil is not rich enough with mineral nutritients and fertilizer is needed to stimulate the growth of the plant.

It is very important for plants to grow in a natural habitat determined by temperature and available sunlight,  protected from disease and parasites.

If we are honest, we are all botanists when we keep a recreational garden at home or visit public gardens in our town or city.

We can see that nature takes care of its own and that we need plants for the preservation of life on earth.


29 thoughts on “WE NEED PLANTS

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