IT’S RAINING-TEXT

IT’S RAINING

ENVIRONMENTAL STUDIES

CBSE CLASS III

Appu ate bananas. Appu likes bananas very much. He plucks and eats bananas from the trees every day. One day, he saw that the banana trees were drooping. It had not rained for a long time.

I must get water in my trunk – said Appu. He started walking towards the river. Appu drank water till he was happy. He bathed his body with his trunk.

Then he carried water in his trunk and poured it on the banana trees. As soon as the banana trees got water they came alive. Appu said – From now on I will get water for you everyday. After all, you also give me ripe and tasty bananas.

where do the plants growing around your house get water? Appu watered the banana tree. But elephants don’t water trees. Then, where do plants get water from? Plants mostly get water from rain. When it rains plants seem to get a new look.

Let us see why  plant need water……

Water is essential for the celluar function of  plant And for the process of photosynthesis. Most plants are terrestrial which means they live on land, and water is a relatively scarce. In order for a plant to survive, it must able to obtain water to distribute to all parts of plant cell, and then conserve the water with in the system.

When it is rainy all the rivers lakes, and ponds filled water.but when it is a sunny day. Water from river, and ponds lakes starts evaporate and rises up.

Sunlight causes water to evaporate into the atmosphere. This air containing the water vapor is heated at the surface of the earth and rises. As the air rises, it cools and the water vapor condenses on some form of particulate matter such as dust, ash, or smoke to form clouds.  The particulate matter are called Condensation.

So, what is a cloud? It is a thick mass of suspended water drops or ice crystals. What do clouds tell us?

The presence of clouds in the sky is one type of signal to meteorologists that there will be changes in the weather. Predicting the weather requires the understanding of the different types ofclouds.

To better communicate and understand the many cloud forms in the sky, meteorologists identify clouds based on five basic cloud characteristics:

The altitude at which they occur Color, Density, Shape, Degree of cover.

From this information, we can identify three basic cloud types and seven other common cloud type.

Clouds can be classified by some simple, but subjective, criteria that also provides information on the atmospheric conditions. One form of classification is based on appearance or form. 

Using these characteristics you can identify the three basic cloud types: stratus, cirrus, and cumulus .

Stratus clouds are thin, sheet-like clouds.  They are layered with some rippling, and cover large portions of the sky.  They are frequently gray and thick.  Stratus clouds are formed when air is forced up slowly

Cirrus clouds are thin, white clouds  with a feathery appearance. They are the highest of all clouds forming at heights of 30,000 feet or more above the earth's surface. Cirrus clouds are formed by ice crystals.  They generally occur in fair weather and point in the direction of air movement at their elevation. Cirrus clouds are usually the first sign of an approaching storm.

Cumulus clouds are flat-based, billowing clouds with vertical doming. Often the top of cumulus clouds have a "cauliflower-like" appearance. Cumulus clouds are most prominent during the summer months. Cumulus or fluffy clouds form when air is forced up rapidly and therefore rises higher.

THANK YOU,

N.NANDITHA