3 facts about stars

Answer 1

There are more stars than all of the grains of sand on earth.

You can see stars from the bottom of a well even in day light.

Stars with really strong gravity cause themselves to become smaller and smaller and eventually turn into black holes.

sun is a star

Answer 2

Stars shine because the light we see coming from the stars travels through the atmosphere around the earth and there is turbulence in the earths atmosphere.

1. They are made mainly of hydrogen
2. They make heavier elements out of this hydrogen
3. The time for which they exist depends on how massive they are (small stars live longest)
4. They shine because of a process called nuclear fusion which converts mass into energy according to Einstein's equation E=MC2

Answer 3

stars are blue when they are small and turn yellow orage when they are big

Answer 4

They are centres of thermonuclear fusion.