Structure of the universe

What is Earth´s place in the universe?

(a)  

The collection of large and small bodies that orbits the Sun is called (a)   .

Mentions the correct order of the eight planets in the Solar System.

(a)  

The small bodies that orbit planets are called ______________.

• Comets

• dwarf planets

• Moons

(a)   are all rocky, dense, and small.

(a)   is a large celestial body that is composed of gas and emits light.

According to their sizes, stars are classified as ______________, _________________, and _______________________.

(a)  

(a)   is a large collection of stars, gas, and dust that is held together by gravity.

Based on its shape, the Comet Galaxy is _______________.

• an irregular galaxy

• an elliptical galaxy

• a spiral galaxy

Magellanic Clouds have around 30 billion stars, and they are ___________

• Dwarf galaxies

• Giant galaxies