Class 7 Exam  >  Class 7 Notes  >  Worksheets with solutions for Class 7  >  Worksheet: Heat Transfer in Nature

CBSE Class 7 Science Chapter 7 Heat Transfer in Nature Worksheet - Free Download

Q.1. True/False

(i) Metals are poor conductors of heat.

(i) Land breeze occurs during the night.

(i) Dark-colored clothes absorb less heat than light-colored clothes.

(i) Water vapor released by plants is called transpiration.

(i) Radiation requires air or water to transfer heat.

Q.2. Fill in the blanks.

(i)  The hotness of an object is determined by its ____.

(ii) Temperature is measured in degree ____.

(iii) A cold steel spoon is dipped in a cup of hot milk. It transfers heat to its other end by the process of ____.

(vi) Dark colored clothes are preferred during ____.

(v) Poor conductors are known as ____.

Answer the following Questions 

Q.3. Does the transfer of heat by radiation require any medium?

Q.4. What is the concern associated with the use of mercury thermometers?

Q.5. How water get heated when kept on flame?

Q.6. Which device is used to measure temperature?

Q.7. How does heat flow from one object to another?

Q.8. Do all hot bodies radiate heat?

Q.9. How does heat transfer in solids?

Q.10. What is Conduction?

Q.11. Explain the process of conduction with an example.

Q.12. What is convection and how does it affect coastal areas?

Q.13. Describe radiation and give two real-life applications.

Q.14. How does the water cycle help in redistributing water on Earth?

Q.15. What are ice stupas and how do they help conserve water in Ladakh?

For Worksheet Solutions, go to Worksheet Solutions: Heat Transfer in Nature

The document CBSE Class 7 Science Chapter 7 Heat Transfer in Nature Worksheet - Free Download is a part of the Class 7 Course Worksheets with solutions for Class 7.
All you need of Class 7 at this link: Class 7
1 videos|107 docs

FAQs on CBSE Class 7 Science Chapter 7 Heat Transfer in Nature Worksheet - Free Download

1. What are the three main types of heat transfer?
Ans. The three main types of heat transfer are conduction, convection, and radiation. Conduction occurs when heat is transferred through direct contact between materials. Convection is the transfer of heat through fluids (liquids and gases) as warmer areas rise and cooler areas sink. Radiation is the transfer of heat in the form of electromagnetic waves, which can occur in a vacuum, such as the heat from the sun.
2. How does heat transfer occur in nature?
Ans. In nature, heat transfer occurs through various processes. The sun heats the Earth's surface through radiation. This heat is then transferred to the air (convection) and the ground (conduction). Additionally, water bodies can absorb heat and release it, affecting local weather patterns and climates. Animals and plants also rely on these processes to regulate their body temperatures and survive in their environments.
3. Can you give examples of conduction, convection, and radiation in everyday life?
Ans. Yes! An example of conduction is when you touch a hot metal spoon in a pot; the heat transfers directly to your hand. Convection can be observed when boiling water: the hot water at the bottom rises, while cooler water descends. An example of radiation is feeling the warmth of the sun on your skin, even when standing in the shade; the heat travels through space as infrared radiation.
4. Why is heat transfer important in ecosystems?
Ans. Heat transfer is crucial in ecosystems because it affects climate, weather patterns, and the distribution of organisms. For instance, it influences plant growth by regulating temperature and moisture levels. Animals also rely on heat transfer to maintain their body temperatures, which is essential for their survival and reproduction. Overall, it helps maintain balance within the ecosystem.
5. How do humans use knowledge of heat transfer in technology?
Ans. Humans apply the principles of heat transfer in various technologies, such as heating and cooling systems, refrigerators, and thermal insulation materials. In buildings, understanding heat transfer helps create energy-efficient designs that keep indoor environments comfortable. Additionally, engineers use this knowledge to improve the performance of engines and electronic devices by managing heat effectively.
Related Searches

Sample Paper

,

MCQs

,

Previous Year Questions with Solutions

,

shortcuts and tricks

,

mock tests for examination

,

Summary

,

CBSE Class 7 Science Chapter 7 Heat Transfer in Nature Worksheet - Free Download

,

ppt

,

video lectures

,

Important questions

,

Objective type Questions

,

Exam

,

Extra Questions

,

practice quizzes

,

past year papers

,

study material

,

Viva Questions

,

Semester Notes

,

pdf

,

Free

,

CBSE Class 7 Science Chapter 7 Heat Transfer in Nature Worksheet - Free Download

,

CBSE Class 7 Science Chapter 7 Heat Transfer in Nature Worksheet - Free Download

;