Why is there a demand for Class 7 Astronomy Olympiad?
Space is vast and filled with unknown facts, and there is something new to explore every day, and scientists are even trying to explore new things on a regular basis. If you also like to talk about space and know its facts. We have some points that you might want to know but before going forward. Did you know that Astronomy is one of the oldest natural sciences? Here, you can study various celestial bodies like the sun, moon, stars, planets, nebulae, their theories, and modules. To do so, we use concepts of physics, chemistry, and mathematics.
Our ancestors understood astronomy for a long time, and for million years, they used North stars for navigation. But did you know that North Star changes there place every 26000 years? This is because the earth axis goes through the process known as precession (a change in the orientation of a rotating body axis). Because of this, after every 26000-year cycle, our perception of the North Star changes. Several thousand years ago, Vega was our north star which will gain status back again in around 12,000 years. However, Polaris will return to its original position as Earth's polar star in 26,000 years.
Sample Questions:
Here are the questions from our Astronomy Olympiad for class 7 sample papers
A. In which of the following cities will your shadow be the shortest on the 15th of June?
Delhi
Bhopal
Bangalore
Thiruvananthapuram
B. Which of the following phenomena is/are useful in estimating distances in the Universe?
Stars exhibit Doppler shift.
All supernovae of Type Ia have the same absolute brightness.
Sometimes Venus can be seen transiting over the solar disc.
Stars with no proper motion appear to change their position in the sky when viewed six months apart.
