CSCJ STRUCTURE OF THE UNIVERSE VOCABULARY

A large celestial body that is composed of gas and emits light.

(a)  

A (n) (a)   is a large group of stars, gas and dust bound together by gravity.

The distance that light can travel in one year, also known as a (a)   is about, 9.5 trillion km.

A spherical body that orbits the sun is called a (a)  

They look like spheres or ovals and do not have spirals (a)  

 

(a)   is one of the eight planets that orbit the sun.

The four planets that orbit farthest from the sun and a have thick, gaseous atmosphere; small, rocky cores' and ring system of ice, rock and dust are the (a)  

They contain as many as several thousand galaxies (a)   .

(a)   is classified as a spiral galaxy.

What is the space and  all the matter and energy in it called?

• star

• galaxy

• universe

• planet