Solar System Quiz

One object, ______________, was reclassified as a dwarf planet.

• Mars
• Neptune
• Pluto
• Saturn

Planets were originally formed when bits of matter collided and clumped together called ______________.

• Planetesimals

• Asteroids

• Nebulas

• Supernovas

The orbits of most ______________ lie between Mars and Jupiter.

• comets
• planets
• moons
• asteroids

______________ are pieces of rocky and metallic materials held together by frozen gases.

• Comets
• Planets
• Asteroids
• Meteoroids

A meteoroid that reaches Earth’s surface is called a ______________.

• meteorite
• Asteroid

• meteor

• meteoroid

An area of sky that contains a specific pattern of stars is called a ______________.

• galaxy
• asteroid
• nebula
• constellation

A star is not considered born until the process of ______________ begins.

• nuclear fission
• nuclear fusion
• photosynthesis
• cell division

All stars eventually become either a white dwarf, a neutron star, or a(n) ______________.

• asteroid
• supernova
• black hole
• red giant

Of the three types of galaxies, the Milky Way is a(n) ______________ galaxy.

• elliptical
• irregular
• barred
• spiral

Our sun is considered to be in the ______________ stage of its life cycle.

• main sequence
• white dwarf
• red giant
• black hole