Life Cycle of a Star TSD

What is the process that slows stars to produce light and heat energy?

• A. Magnetic field rotation

• B. Nuclear fusion

• C. Energy transformations

• D. Kinetic energy from impacts

Tags

NGSS.HS-ESS1-1

Why are nebulas called “star nurseries”?

• A. Because they are places where a lot of stars die.

• B. Because they have a lot of the ingredients needed to sustain a star.

• C. Because stars move into a nebula when they reach middle age.

• D. Because they are the birthplaces of stars.

What are the two most abundant elements found in stars?

• A. Hydrogen and helium

• B. Hydrogen and oxygen

• C. Helium and carbon

• D. Carbon and oxygen

Tags

NGSS.HS-ESS1-3

What characteristics of a star determine its life cycle?

• A. Color

• B. Temperature

• C. Mass

• D. Brightness

Tags

NGSS.HS-ESS1-1

NGSS.HS-ESS1-3

All stars in the universe will go through which of the following stages?

• A. Nebula, protostar, main sequence

• B. Nebula, white dwarf, black dwarf

• C. Protostar, main sequence, supernova

• D. Protostar, red supergiant, neutron star

Tags

NGSS.HS-ESS1-1

NGSS.HS-ESS1-3

A ____________________ is a dead star that no longer gives off light or heat.

• nebula

• black dwarf

• black hole

• supernova

The remaining core of a planet-sized star that has exhausted all of its nuclear fuel is known as a ____________________.

• nebula

• black dwarf

• white dwarf

• protostar

A ____________________ is a region of space with a gravitational field so intense that no matter or light can escape.

• white dwarf

• black hole

• black dwarf

• nebula

Ninety percent of stars are in the ____________________ stage of their life cycle.

• main sequence

• protostar

• nebula

• supernova

Tags

NGSS.HS-ESS1-1

A ____________________ is a young star in the early stages of formation when nuclear fusion begins.

• nebula

• black hole

• protostar

• main sequence

Tags

NGSS.HS-ESS1-1