Life Cycle of Low-Mass Stars

Stars are formed from a cloud of dust and gas called a ______.

Which of these are NOT part of the life-cycle of a low-mass star.

• supernova

• red giant

• red supergiant

• main sequence star

• neutron star

The Sun is currently in the Main Sequence stage of its life-cycle. What is the next stage in the cycle?

The larger a star, the _______ its time on the Main Sequence.

• longer

• shorter

A protostar is formed when the temperature gets hot enough for nuclear ______ reactions to begin.

Select the correct order for the stages of the life-cycle of a low-mass star.

• nebula, protostar, red giant, main sequence, white dwarf

• protostar, nebula, main sequence, red giant, white dwarf

• nebula, protostar, main sequence, red giant, white dwarf

• nebula, protostar, white dwarf, main sequence, red giant

In the main sequence, the energy released by nuclear fusion balances the force of gravity.

• True

• False

The main sequence of a star ends when it runs out of ________.