الكون والنظام الشمسى: مكونات النظام الشمسى

The video provides an overview of the solar system, which consists of eight planets, moons, comets, and asteroids. It describes the sun as a medium-sized star at the center, accounting for 99% of the solar system's mass. The planets are divided into inner and outer groups, with the asteroid belt separating them. Comets are icy bodies with fixed orbits, while moons are non-luminous objects reflecting sunlight and orbiting planets.

What percentage of the solar system's mass does the sun represent?

• 100%

• 75%

• 99%

• 50%

Which of the following is NOT an inner planet?

• Mars

• Jupiter

• Venus

• Mercury

What separates the inner planets from the outer planets?

• The Sun

• The Asteroid Belt

• The Moon

• The Comet Belt

What are comets primarily made of?

• Lava

• Rock and Metal

• Sand

• Ice, Dust, and Gases

What do moons do with sunlight?

• Absorb it

• Reflect it

• Enhance it

• Block it