Life Cycle of Stars

Front

Stars are formed from a big cloud of gas and dust known as a ______.

Back

nebula

Front

The only force acting on the nebula is ________.

Back

gravity

Front

A star is born when ________________ begins to happen.

Back

nuclear fusion

Front

Larger, cooler stars are called ___________.

Back

Red Giants

Front

When our Sun becomes a Red Giant, it will engulf _______.

Back

just Mercury and Venus

Front

The core of a Red Giant collapses and becomes a ___________________.

Back

White Dwarf

Front

When a massive star begins to cool and expand it is known as a _______________.

Back

Red Supergiant

Front

When the core of a Red Supergiant collapses, a bright event known as a ___________ occurs.

Back

supernova

Front

After a supernova, the core can collapse into a neutron star, or if massive enough even a ___________.

Back

Black Hole

Front

When a Red Giant's outer atmosphere drifts away it is now known as a ____________.

Back

planetary nebula