<p><strong>1) The Four Inner Planets of the Solar System Are Solids and Smaller in Size. Why?</strong></p>
<ul>
<li>The inner planets are closer to the Sun.</li>
<li>The materials which can survive in the extreme heat produced by Sun combine to form the inner planets, and most of them are metals and rocks.</li>
<li>This aggregation of metals and rocks makes the inner planet smaller and rocky.</li>
</ul>
<p><img src="https://cdn-cms.orchidsinternationalschool.com/media/answer/G3_3_ALT-TEXT_Inner-Planets.jpg" alt="Four Inner Planets of the Solar System" width="601" height="255"></p>
<p><strong>2) Why Are There Fewer or No Moons for the Inner Planets?</strong></p>
<ul>
<li>The inner planets are smaller and denser than all the planets in the solar system.</li>
<li>Thus they do not have enough gravitational force to attract any celestial body or a Moon. Hence they have significantly less or no moon.</li>
</ul>
<p><img src="https://cdn-cms.orchidsinternationalschool.com/media/answer/G3_4_ALT-TEXT_Terrestrial-Planets.jpg" alt="Fewer or No Moons for the Inner Planets" width="518" height="171"></p>
<p><strong>3) Why Is Mars Called the &lsquo;Red Planet&rsquo;?</strong></p>
<div class="col-md-8">
<ul>
<li>The soil on mars is very rich in rust due to the presence of iron in the soil.</li>
<li>This large amount of rust in the soil gives it its characteristic red colour.</li>
</ul>
</div>
<div class="col-md-4"><img src="https://cdn-cms.orchidsinternationalschool.com/media/answer/G3_5_ALT-TEXT_Surface-of-Mars.jpg" alt="Mars: Red Planet" width="252" height="230"></div>

Learn about the inner planets of our solar system, their unique characteristics, and their significance in our understanding of planetary science.

Inner planets