CBSE Class 7 Science Exemplar Chapter 7: Weather, Climate and Adaptation of Animals to Climate NCERT Solutions
This chapter delves into the fundamental concepts of weather and climate, explaining the differences between them and how they influence the environment. It further explores the fascinating adaptations that animals have developed to survive in diverse climatic conditions, particularly focusing on extreme environments like deserts and polar regions. The NCERT Solutions for Class 7 Science Exemplar, Chapter 7, provide clear explanations and step-by-step answers to help students understand these topics thoroughly. These solutions cover multiple-choice questions and descriptive questions, aiding students in grasping the nuances of animal adaptations and the characteristics of different climates. This resource is designed to enhance learning and prepare students effectively for their examinations by reinforcing key scientific principles and problem-solving skills.
Quick info
| Board | CBSE |
|---|---|
| Class | Class 7 |
| Subject | Science Exemplar |
| Session | 2026 |
| Language | English |
| Type | NCERT Solutions |
| Chapter | Chapter 7 |
Chapter summary
Chapter 7 of the CBSE Class 7 Science Exemplar focuses on understanding weather patterns, defining climate, and exploring the remarkable adaptations of animals to different climates. The NCERT Solutions break down concepts like daily temperature variations, long-term weather patterns, and the characteristics of desert and tropical climates. It also details the specific adaptations of animals, such as polar bears, to survive in extreme conditions, covering physical features and behavioral strategies. These solutions offer clear explanations for each question, making complex biological and meteorological concepts accessible.
Learning outcomes
- Understand the difference between weather and climate.
- Identify the characteristics of different climates (e.g., hot and dry, tropical).
- Explain the concept of adaptation in animals.
- Describe specific adaptations of animals to extreme climates like polar regions.
- Analyze how environmental conditions influence animal survival.
Topics covered
Paper topics
- Weather
- Climate
- Difference between Weather and Climate
- Desert Climate
- Tropical Climate
- Animal Adaptations
- Adaptations for Cold Climates
- Adaptations for Hot and Dry Climates
- Polar Bear Adaptations
- Wildlife Sanctuaries
Important topics
- Understanding Climate vs. Weather
- Characteristics of Desert and Tropical Climates
- Animal Adaptations to Extreme Cold
- Role of Insulation and Camouflage in Survival
PDF preview
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Questions and Solutions
Multiple Choice Questions
(a) highest day temperature and lowest night temperature of the day.
(b) highest day temperature and highest night temperature of the month.
(c) temperature recorded at 12 noon and at mid night (00.00 hrs).
(d) average highest temperature of day and average lowest temperature of night.
(a) Changes in weather conditions in a year.
(b) Average weather pattern of many years.
(c) Change in weather pattern in a few years.
(d) Weather conditions during summer.
(a) Hot and humid
(b) Dry and humid
(c) Hot and dry
(d) Hot and wet
(a) temperate region
(b) tropical region
(c) polar region
(d) coastal region
- Layer of fat under the skin
- Long, curved and sharp claws
- Slippery body
- Thick white fur
(a) (i) only
(b) (i) and (ii) only
(c) (i), (ii) and (iii) only
(d) (i), (ii), and (iv) only
Common mistakes
- Confusing daily weather with long-term climate.
- Incomplete understanding of animal adaptations to specific environmental pressures.
- Incorrectly associating adaptations with the wrong climate type.
Revision tips
- Focus on the definitions of weather and climate and their key differences.
- Create a table summarizing the adaptations of animals to different climates (e.g., polar bear, desert animals).
- Review the explanations for each multiple-choice question to reinforce understanding of the concepts.
- Visualize the environments described (e.g., polar regions, tropical forests) to better understand animal adaptations.
Practice MCQs
Q1. The maximum and minimum temperature displayed in a daily weather bulletin typically refer to:
Explanation: The daily maximum temperature usually occurs in the afternoon, while the minimum temperature is recorded during the early morning hours (dawn).
Q2. Which statement best defines climate?
Explanation: Climate represents the long-term average of weather conditions in a particular area, typically observed over decades.
Q3. A desert climate is best described as:
Explanation: Deserts are characterized by high temperatures for most of the year and very low rainfall, resulting in a hot and dry climate.
Q4. A wildlife sanctuary with dense vegetation, trees, shrubs, herbs, and a wide variety of animals like monkeys, birds, and elephants is most likely located in:
Explanation: Tropical regions have favorable conditions, including abundant rainfall and moderate temperatures, that support a rich diversity of plant and animal life.
Q5. Which adaptive features are characteristic of a polar bear living in a cold, icy environment?
Explanation: Polar bears have a layer of fat for insulation and thick white fur for warmth and camouflage. Sharp claws help them walk on ice, but a slippery body is not a primary adaptation for them.
Frequently asked questions
What is the main difference between weather and climate?
Weather refers to the day-to-day conditions of the atmosphere at a particular place, including temperature, rainfall, wind, etc. Climate, on the other hand, is the average weather pattern of a region over a long period, typically 25-30 years or more.
Why are tropical regions known for high biodiversity?
Tropical regions generally experience warm temperatures and receive ample rainfall throughout the year. These favorable conditions support a wide variety of plant life, which in turn provides food and shelter for a diverse range of animals.
What are the key adaptations of a polar bear for survival?
Polar bears have several adaptations: a thick layer of fat under their skin for insulation against extreme cold, thick white fur for warmth and camouflage, long and sharp claws to walk on ice and catch prey, and a rounded body with small ears to minimize heat loss.
How do animals adapt to hot and dry desert climates?
Animals in deserts often adapt by being nocturnal (active at night), having light-colored skin or fur to reflect heat, efficient kidneys to conserve water, and behaviors like burrowing underground to escape the heat.
How can these NCERT Solutions help in exam preparation?
These solutions provide clear, step-by-step explanations for each question, reinforcing understanding of key concepts like weather, climate, and animal adaptations. They help in practicing problem-solving and identifying common mistakes, thereby boosting confidence for exams.
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