Suns and Stars

Hello I am back and I am going to tell you about suns and stars. Do you now what suns and stars are? TOO BAD! I am going to tell you how they shine, how they change over time, and how scientist classify stars.

Nuclear Fusion


 The hotter something is, the more atoms move. When the atoms move they crash into each other. If atoms move quick enough they could stick together. This is called nuclear fusion. This nuclear fusion sends out lots of energy. This energy helps stars live. 

Why stars shine?

First of all a star is large ball of gas that is held together by the gravity in space. A stars core can reach millions degrees celsius. When the energy leaves a star's core it goes through the star and spreads or shines in space.

Inside of the sun

There are 6 parts of a sun. The Sun has a huge magnetic field. It is about 10 times bigger than ours. The magnetic field is not a part of the layers. Whenever a star is formed all stars are filled with hydrogen and helium in their cores. The layers of the sun are the Corona, Chromosphere, Photosphere, Core, Radiative zone, and the Convection zone. The Corona is the part of the sun when we see a solar eclipse.

How do scientists classify stars?

Some scientists classify stars on their temperature, color, and mass.   Did you know that the a red sun is the coolest star? The white and blue stars are the hottest stars.  The white and blue stars have the most mass because they are bigger. 

How does the sun change over time?

Lots of things can happen to the sun in a short amount of time. Some suns can have sunspots or solar flares. Sunspots are dark spots on the sun caused by its huge magnetic field. Also a star can get bigger and bigger until it reaches earth and then implodes.