Weather, Climate and Adaptations of Animals to Climate Class 7 Worksheet Science

Q.1. True/False
(i) Climate of Rajasthan is hot and dry.

True

(ii) A carnivore with stripes on its body moves very fast while catching its prey. It is likely to be found in Polar Regions.

False

(iii) The weather of a place changes day after day and week after week.

True

(iv) Elephants have long tails for grasping branches.

False

(v) Like polar bears, penguins are also good swimmers.

True

Q.2. Fill in the blanks.
(i) The average weather taken over a long time is called the ____ of the place.

climate

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

hot, dry

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

polar, tropical region

(iv) Climate of Kerala is very ____ and ____.

hot, wet

(v) All changes in the weather are caused by the ____.

sun

Q.3. How does the ability to camouflage help an animal?

Ability to camouflage helps an animal to protect it from predators.

Q.4. Name some animals found in rainforests.

Animals found in rainforests are monkeys, apes, gorillas, tigers, elephants, leopards, lizards, snakes, birds and insects.

Q.5. Animals found in rainforests are monkeys, apes, gorillas, tigers, elephants, leopards, lizards, snakes, birds and insects.

The climatic conditions in rainforests are highly suitable for supporting an enormous number and a variety of animals. Since the numbers are large, there is intense competition for food and shelter. So, animals have adapted themselves to overcome the competition for food and shelter in the rainforests.
Example:

• Many animals are adapted to living on the trees. Red-eyed frog has developed sticky pads on its feet to help it climb trees on which it lives.  
• To help them live on the trees, monkeys have long tails for grasping branches. Their hands and feet are such that they can easily hold on to the branches. 
• Bird Toucan possesses a long, large beak. This helps a toucan to reach the fruits on branches which are otherwise too weak to support its weight.

Q.6. Name some well-known countries that belong to the Polar Regions.

Some well-known countries that belong to the Polar Regions are Canada, Greenland, Iceland, Norway, Sweden, Finland, Alaska in U.S.A. and Siberian region of Russia.

Q.7. What is a rain gauge?

Rain gauge is an instrument used to measure the amount of rainfall over a set period of time. It is basically a measuring cylinder with a funnel on top to collect rainwater.

Q.8. How tropical rainforest supports wide variety of plants and animals?

The tropical region has generally a hot climate because of its location around the equator. Even in the coldest month the temperature is generally higher than about 15°C. During hot summers, the temperature may cross 40°C. Days and nights are almost equal in length throughout the year. These regions get plenty of rainfall. Because of continuous warmth and rain, this region supports wide variety of plants and animals. The major types of animals living in the rainforests are monkeys, apes, gorillas, tigers, elephants, leopards, lizards, snakes, birds and insects.

Q.9. Which of the two changes frequently, weather or climate?

Weather changes frequently.

Q.10. Which instrument is used to measure rainfall?

Rainfall is measured by an instrument called the rain gauge.

Q.11. Are the days shorter in winter than in summer?

Yes, days are shorter in winter than in summer

Q.12. What type of place experiences hot and dry climate?

The region that receives very little rainfall experiences hot and dry climate.

Q.13. What kind of information does a weather report carry?

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.

Q.14. What do Meteorological Department of the Government do?

The weather reports are prepared by the Meteorological Department of the Government. This department collects data on temperature, wind, etc., and makes the weather prediction.

Q.15. Write some of the adaptations of animals found in tropical rainforest.

Some adaptations of animals living in the tropical rainforests include living on the trees, development of strong tails, long and large beaks, bright colours, sharp patterns, loud voice, diet of fruits, sensitive hearing, sharp eyesight, thick skin, ability to camouflage in order to protect themselves from predators, etc.

Q.16. All changes in the weather are caused by the sun. Explain?

All changes in the weather are caused by the sun. The sun is a huge sphere of hot gases at a very high temperature. The distance of the sun from us is very large. Even then the energy sent out by the sun is so huge that it is the source of all heat and light on the earth. So, the sun is the primary source of energy that causes changes in the weather. Energy absorbed and reflected by the earth’s surface, oceans and the atmosphere play important roles in determining the weather at any place.

Q.17. How do elephant living in the tropical rainforest adapt itself?

It has adapted to the conditions of rainforests in many remarkable ways. Some of the adaptations are as follows:
(i) It uses its trunk as a nose because of which it has a strong sense of smell. The trunk is also used by it for picking up food.
(ii) Moreover, its tusks are modified teeth. These can tear the bark of trees that elephant loves to eat.
(iii) Large ears of the elephant help it to hear even very soft sounds. They also help the elephant to keep cool in the hot and humid climate of the rainforest.

Q.18. What are the characteristics of the Polar Regions?

The Polar Regions present an extreme climate. These regions are covered with snow and it is very cold for most part of the year. For six months the sun does not set at the poles while for the other six months the sun does not rise. In winters, the temperature can be as low as –37°C. Animals living there have adapted to these severe conditions.

Q.19. What are the adaptations of penguins?

Adaptations of penguins are:
(i) It is white and merges well with the white background. It also has a thick skin and a lot of fat to protect it from cold.
(ii) Penguins huddled together. This they do to keep warm.
(iii) Penguins are also good swimmers. Their bodies are streamlined and their feet have webs, making them good swimmers.

Q.20. How weather is a complex phenomenon?

The weather is a complex phenomenon as 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. Since weather is such a complex phenomenon, it is not easy to predict.