Life Cycle of a Star Assessment

Inside a nebula are regions where gravity pulls together gas and dust into a ______.

• protostar

• nebula

• main sequence

• white dwarf

Tags

6-8 ES1E

DCI.ESS1.A.6-8.3

A star is born when nuclear ______ begins.

• measuring

• heating

• fusion

• fission

Tags

6-8 ES1E

DCI.ESS1.A.6-8.3

Stars spend most of their life in the _____ phase.

• nebula

• red giant

• main sequence

• white dwarf

Tags

6-8 ES1E

DCI.ESS1.A.6-8.3

The _____ of a star determines what happens when it leaves main sequence.

• gravity

• mass

• density

• volume

Tags

6-8 ES1E

DCI.ESS1.A.6-8.3

What phase is our sun in?

• red giant

• supernova

• main sequence

• white dwarf

Tags

6-8 ES1E

DCI.ESS1.A.6-8.3

The _____ is the last stage in a low-mass star's life when it no longer emits heat or light.

• black dwarf

• nebula

• main sequence

• white dwarf

Tags

6-8 ES1E

DCI.ESS1.A.6-8.3

7. Label the phases in the life cycle of a low mass star.

c

b

d

e

a

main sequence

red giant

planetary nebula

white dwarf

nebula/protostar

Tags

6-8 ES1E

DCI.ESS1.A.6-8.3

An interstellar medium is a thinly spread area of gas and dust.

Which of the following elements make up the gas and dust of the interstellar medium. Choose the correct THREE answers.

• oxygen

• hydrogen

• carbon

• silicon

• helium

Tags

6-8 ES1E

DCI.ESS1.A.6-8.3

Describe in your own words how the life cycle of humans compares to the life cycle of a star.

Tags

6-8 ES1E

DCI.ESS1.A.6-8.3

Explain nuclear fusion and how it relates to our star.

Tags

6-8 ES1E

DCI.ESS1.A.6-8.3