NCERT Class 7 Science Weather Climate and Adaptation

NCERT Class 7 Science Weather, Climate and Adaptation. Download NCERT Chapters and Books in pdf format. Easy to print and read. Copies of these textbooks may be downloaded and used as textbooks or for reference. Refer to other chapters and books at other links (NCERT now providing you soft copies of all textbooks of all subjects from class first to twelfth online). 

7 Weather, Climate and

Adaptations of Animals to

Climate

Do you remember the things that you were asked to pack when you were heading for a hill station? When the sky is cloudy, your parents insist that you carry an umbrella. Have you heard elders in your family discuss the weather before planning a family function? You must have also heard the experts discussing the weather before the start of a game. Have you ever wondered why? The weather may have a profound effect on the game. It has a profound effect on our lives. Many of our daily activities are planned based on the weather predicted for that day. There are daily reports of the weather on the television and radio and in the newspapers. But do you know what this weather really is? In this chapter, we will study about the weather and climate. We will also see how different forms of life are adapted to the climate of their habitat.

7.1 WEATHER

In Fig. 7.1 a sample of weather report from a newspaper is given. We find that the daily weather report carries information about the temperature, humidity and rainfall during the past 24 hours. It also predicts the weather for the day. Humidity, as you might know, is a measure of the moisture in air.

Activity 7.1

Cut out the weather reports of the last week from any newspaper. If you do not get a newspaper at home borrow from your neighbours or friends and copy these reports in your notebook. You can also collect weather reports from a library. Paste all the cut-outs on a white sheet or on a chart paper. Now record the information from the weather reports collected by you in Table 7.1. The first row is just a sample.

Fill all the columns according to the data in the chart that you have prepared Do all the seven days have the same maximum and minimum temperatures, humidity and rainfall? The maximum and minimum temperatures recorded may be the same for some of the days. However, all the parameters are not the same on any two days. Over a week there may be considerable variation. The dayto- day condition of the atmosphere at a place with respect to the temperature, humidity, rainfall, windspeed, etc., is called the weather at that place. The temperature, humidity, and other factors are called the elements of the weather. The weather of a place changes day after day and week after week. That is why we often say, “today’s weather is too humid”, or “the weather was warm last week”.

The weather is such a complex phenomenon that it can vary over very short periods of time. It can happen sometimes that it is sunny in the morning, but suddenly clouds appear from nowhere and it starts raining heavily. Or, a heavy rain may vanish in a matter of minutes and give way to bright sunshine. You must have had several such experiences. Try to recall any such experience and share it with your friends. Since weather is such a complex phenomenon, it is not easy to predict.

Exercises

1. Name the elements that determine the weather of a place.

2. When are the maximum and minimum temperature likely to occur during the day?

3. Fill in the blanks:

(i) The average weather taken over a long time is called ___________

(ii) A place receives very little rainfall and the temperature is high throughout the year, the climate of that place will be ___________ and ___________ .

(iii) The two regions of the earth with extreme climatic conditions are ___________ and __________.

4. Indicate the type of climate of the following areas:

(a) Jammu and Kashmir: _________________________________

(b) Kerala: ____________________________________________

(c) Rajasthan: __________________________________________

(d) North-east India: _____________________________________

5. Which of the two changes frequently, weather or climate?

6. The tropical rainforest has a large population of animals. Explain why it is so.

7. Explain, with examples, why we find animals of certain kind living in particular climatic conditions.

8. How do elephant living in the tropical rainforest adapt itself.


Please refer to attached file for NCERT Class 7 Science Weather, Climate and Adaptation

Tags: 

 


Click to View or Download pdf file
Click for more Science Study Material

Latest NCERT & CBSE News

Read the latest news and announcements from NCERT and CBSE below. Important updates relating to your studies which will help you to keep yourself updated with latest happenings in school level education. Keep yourself updated with all latest news and also read articles from teachers which will help you to improve your studies, increase motivation level and promote faster learning

Ganga Utsav 2020 organized by NMCG

The National Mission for Clean Ganga (NMCG) is organising the annual ‘Ganga Utsav’ on November 2nd , 3rd & 4th, 2020 on a virtual platform. The Utsav will involve storytelling, folklores, & dialogues with eminent personalities, quizzes, display of traditional...

Aryabhata Ganit Challenge 2020

Aryabhata Ganit Challenge (AGC) has been initiated by the CBSE Board to enhance mathematical abilities among students in the year 2019. In order to reach out to maximum students across the country, the Board will host the Aryabhata Ganit Challenge on DIKSHA platform...

Five Tips for Brisk and Effective Revision for School and Board Examinations

The intend of this article is to present before you the 5 most efficient tips to facilitate the students to revise the entire course for the Annual School and Board Examination.  We are moving towards the upcoming examinations, almost all the academic institutions of...

What to do Post Receipt of Question Paper in the Board Examination

The intend of this article is to guide the students about the course of action they should follow once they receive the CBSE question papers in the school as well as board examination centre. Before initiating the examination there are few key aspects which the...

Mathematical Literacy Free Practice Book for Students

With a larger goal to promote 21st century skills such as critical thinking and problem solving, the Central Board of Secondary Education has shared a Mathematical Literacy: Practice Book for Students. This Work Book is designed to allow learners of classes 7th to 10th...

Gandhiji Quiz by CBSE

CBSE has launched a Quiz on Mahatma Gandhi. The quiz portal can be accessed on Discover Gandhi portal at: https://discovergandhi.in/ DIKSHA platform (https://diksha.gov.in) and the Discover Gandhi mobile App which can be easily downloaded from Google Play Store on...

×
Studies Today