All questions of September Week 2 for Class 6 Exam

On the Kelvin scale, the boiling point of water is 373.15 K.

A joint family in India is characterized by multiple generations living together, such as grandparents, parents, children, and sometimes extended relatives like uncles and aunts. This setup allows for close-knit family bonds and shared responsibilities among all members.

Families are considered the fundamental unit of society because they provide essential social and emotional support, teaching values, responsibilities, and cooperation among members.

Understanding Temperature Differences
When we talk about the temperatures of different bodies, the concept of temperature is crucial in understanding how heat is distributed among objects.
Observation of Temperature Variations
The correct answer is option 'B': Some bodies have higher temperatures than others. This observation is fundamental in science and can be explained through several key points:
Heat and Temperature
- Temperature is a measure of how hot or cold an object is.
- It indicates the average kinetic energy of the particles in a substance; the higher the temperature, the more energy the particles have.
Different Materials, Different Temperatures
- Different materials absorb and release heat differently. For example, metal feels colder than wood at the same temperature because metal conducts heat away from your skin more efficiently.
- The same amount of heat can raise the temperature of one material more than another due to differences in specific heat capacity.
Measurement Tools
- Temperature can be measured using various instruments like thermometers, which provide a numerical value to the sensation of warmth or coldness.
- The ability to measure temperature allows us to quantify these differences between bodies.
Real-World Examples
- In everyday life, we can observe this when touching ice (which feels cold) compared to a hot cup of coffee. They have significantly different temperatures.
- Even in the environment, the sun heats some surfaces more than others, leading to variations in temperature.
In summary, recognizing that some bodies have higher temperatures than others is essential to understanding thermal dynamics and the behavior of materials in our world.

As children grow up, they take on more responsibilities at home to help their parents and other family members. This includes chores and tasks that contribute to the smooth functioning of the household.

In the Bhil community, 'halma' refers to a tradition of coming together to support individuals or families in times of crisis, such as planting trees or conserving water.

Understanding Water Boiling Point
Water boils at a specific temperature depending on the scale used to measure temperature. In the Celsius scale, water boils at 100°C.
Why Does Water Boil at 100°C?
- Boiling Point Definition: The boiling point of a liquid is the temperature at which it changes from a liquid to a gas. For water, this occurs when it reaches 100°C at standard atmospheric pressure (1 atmosphere or 101.3 kPa).
- Molecular Activity: At this temperature, water molecules have enough energy to overcome the forces holding them together in the liquid state. As they gain energy, they move faster and eventually break free to become steam (gas).
Comparison with Other Temperatures
- 0°C: This is the freezing point of water, where it changes from liquid to solid.
- 32°C: This is equivalent to 0°C in the Fahrenheit scale, not relevant for boiling.
- 273°C: This temperature is not standard for boiling water; it relates to absolute zero in Kelvin.
Conclusion
In summary, the correct answer to the question regarding the boiling point of water on the Celsius scale is 100°C. This is a fundamental concept in understanding phase changes in water, which is crucial for various scientific and practical applications.

Joint Family vs. Nuclear Family
Joint families and nuclear families are two common types of family structures, each with its own unique characteristics. The main difference between them lies in how the family members are organized and live together.

Joint Family
- In a joint family, several generations of a family live together under one roof.
- This type of family structure typically includes grandparents, parents, and children all residing in the same household.
- Joint families often share resources, responsibilities, and decision-making among all family members.
- There is a strong sense of unity and support within a joint family, as multiple generations provide emotional, financial, and practical assistance to one another.
- Children in joint families grow up in a multi-generational environment, learning from the experiences and wisdom of their elders.

Nuclear Family
- A nuclear family, on the other hand, consists of only the parents and their children living together in one household.
- This type of family structure is more common in modern societies, where individualism and independence are valued.
- Nuclear families tend to have a smaller social circle, with less reliance on extended family members for support.
- Decision-making and responsibilities within a nuclear family are typically shared between the parents, with less input from other family members.
- Children in nuclear families may have closer relationships with their immediate family members but may have less exposure to the wisdom and guidance of older generations.
In conclusion, the main difference between a joint family and a nuclear family is the presence of multiple generations living together in a joint family, whereas a nuclear family consists of only the parents and children. Each type of family structure has its own advantages and challenges, and the choice between them often depends on cultural, economic, and personal preferences.

In Indian families, cousins are often considered as brothers and sisters, emphasizing deep bonds and close-knit relationships among all children in the family.

Body temperature can be influenced by age, activity level, and time of day, but not by eye color.

Digital thermometers use electronic sensors to measure and display the temperature digitally.

Indian families often teach values such as ahimsa (non-violence), dāna (giving), sevā (service), and tyāga (sacrifice), which emphasize love, care, cooperation, and interdependence among family members.