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2. USING THE SCIENTIFIC METHOD
Q. 1: How has the scientific method helped us in our fight against disease?
Ans:
The scientific method has helped us in knowing the causes of diseases and their prevention. It has also enabled us to make life saving drugs.
Q. 2: Write a note on the better sanitary conditions available in our cities today and compare them with what they were like a hundred years ago?
Ans:
Today, our city streets are paved and well drained. They are cleaned regularly. Garbage and sewage is disposed of properly. A hundred years ago, the streets were unpaved and poorly drained. Household garbage and other refuse were thrown in the streets. So, today sanitary conditions are far better than a hundred years ago.
Q. 3: What are sanitary conditions like our villages today and how would you improve them?
Ans:
Today, our villages are poorly drained, outdoor toilets are common and streets are unpaved. We could improve them by awaring people about better sanitation and its positive effect on their health.
Q. 4: How has scientific method helped us in the production and preservation of foods? Ans:
Through the scientific method, we get more production of food. Modern methods of selecting, grading, and processing have helped us a lot in the preservation of food.
Q. 5: We are less fearful than our ancestors. What were our ancestors afraid of?
Ans:
We are less fearful than our ancestors because we have left believing superstitions. Our ancestors were afraid of black cats, broken mirrors and the number 13.
Q. 6: How has the scientific method enabled us to get over the old fears?
Ans:
The scientific method has made us reasonable. Now, we know there is a sound reason behind every happening. In this way, the scientific method has enabled us to get over the old fears.
Q. 7: What part did astrology play in the lives of men and women in the past? Give examples?
Ans:
In the past, astrology played an important part in the lives of men and women. People used to consult astrologists before marriages and other important matters of life.
Q. 8: Describe some of the superstitions still current in our country. How do they affect the lives of those who believe in them?
Ans:
Still, some people believe in wearing charms and other superstitions like them. They affect the lives of those according to belief.
Q. 9: What were the survival chances at two hundred years of age?
Ans:
Two hundred years ago, seven out of eight babies died before reaching their first birthday.
Q. 10: What do we mean by the word attitude?
Ans:
By attitude, we mean the way we feel and think towards an idea or an event.
Q.11: What is meant by superstitions?
Ans:
Feelings that involve fears are called superstitions. Black cats, broken mirrors and number 13 are some common superstitions.
Q.12: How did thrifty housewives preserve food in the past?
Ans:
Thrifty housewives preserved their home-grown vegetables and fruits by canning, pickling, or drying them for use during the cold weather. Meats were preserved by salting and drying or by freezing.
Q.13: How scientific method has improved our ways of life?
Ans:
The scientific method has improved our ways of life by solving health problems, increasing the production and preservation of food, and bringing positive changes in our attitude
Q.14: What is the purpose of this lesson?
Ans:
This lesson helps us to understand how the use of scientific methods has improved living conditions and changed our attitude.