Science - Grade 8 (C ...
Topic outline
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NCERT Solutions for Class 8 Science PDF free download, NCERT Solutions for Class 8 Science Chapter 17 Stars and Solar System, to Study online or download free in PDF form. NCERT Textbook Answers of class 8 science chapter 17 Stars and Solar System, CBSE Class 8 Science Notes , Question Answers provided for NCERT Science Textbook for Class 8, Class 8 Science Chapter 17 Stars and Solar System Exercises Answers, Class 8th Science, Class 8 Science exams, class 8 science notes, science class 8 notes, ncert class 8 science, Stars and Solar System class 8 notes pdf, NCERT Solutions for Class 8 Science Chapter 17 Stars and Solar System, Download NCERT Solutions for Class 8 Science, CBSE Science Class 8 Chapter Wise Solved Q and Ans, Learn 8th grade science, Chapter 17 Stars and Solar System, NCERT Solutions for Class 8th Science Chapter 17 Stars and Solar System, CBSE Class 8 Science Chapter 17 - Stars and Solar System, Chapter 17 Stars and Solar System class 8 science, Science-Class 8 (CBSE/NCERT)-Chapter 17- Stars and Solar System - Questions and Answers/Notes/Worksheets Tags: Class VIII - Stars and Solar System, CBSE Grade 8 Science Stars and Solar System, Science - Class 8- Stars and Solar System, NCERT Solutions for Class 8th: Ch 17 Stars and Solar System, Class 8 CBSE Science Stars and Solar System, CBSE class 8 science Stars and Solar System, Grade 8 –Science - CBSE / NCERT – Stars and Solar System Question Bank for eighth class, Question and Answers free worksheet PDF on Stars and Solar System, Practice page and Important question and Extra question on Stars and Solar System for eighth standard, Explain how you can locate the Sirius Star with the help of Orion. Draw sketches to show the relative positions of prominent stars in (a) Ursa Major and (b) Orion. Explain how you can locate the Pole Star with the help of Ursa Major. Differentiate between artificial satellites and natural satellites.
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Stars and Solar System
Q99. Match items in column A with one or more items in column B:
A
B
(i) Inner planets
(a) Saturn
(ii) Outer planets
(b) Pole Star
(iii) Constellation
(c) Great Bear
(iv) Satellite of the Earth
(d) Moon
(e) Earth
(f) Orion
(g) Mars
Ans.
A
B
(i) Inner planets
(e) Earth, (g) Mars
(ii) Outer planets
(a) Saturn
(iii) Constellation
(c) Great Bear, (f) Orion
(iv) Satellite of the Earth
(d) Moon
Q100. Explain how you can locate the Sirius Star with the help of Orion.
Ans. The star Sirius, which is the brightest star in the sky, is located close to Orion. To locate Sirius, imagine a straight line passing through the three middle stars of Orion. Look along this line towards the east. This line will lead us to a very bright star. It is Sirius.
Image from NCERTQ101. Draw sketches to show the relative positions of prominent stars in
(a) Ursa Major and (b) OrionAns. (a) Ursa Major
Image from NCERT(b) Orion
Image from NCERT
Q102. Explain how you can locate the Pole Star with the help of Ursa Major.
Ans. Look towards the northern part of the sky and identify Ursa Major. Look at the two stars at the end of Ursa Major. Imagine a straight line passing through these stars as shown in Figure. Extend this imaginary line towards the north direction. This line will lead to a star which is not too bright. This is the Pole Star.
Image from NCERT
Q103. Differentiate between artificial satellites and natural satellites.
Ans. Difference between artificial satellites and natural satellites
Artificial Satellites
Natural Satellites
1. They are man-made. They are launched from the Earth.
1. They are formed by nature.
2. They are temporal.
2. They are permanent.
3. They are used for weather forecasting, long distance communication and remote sensing.
3. They are not used for weather forecasting, long distance communication and remote sensing.
4. They revolve around the Earth much closer than earth’s natural satellite, the moon.
4. The distance between the Moon and Earth is very large.
5. Example: Aryabhatta, INSAT, IRS, Kalpana-1, EDUSAT, etc.
5. Example: Moon
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