Unit 5 - Astronomy

1. One object, ____________________, was reclassified as a dwarf planet.

• Pluto

• Asteroids

• Comets

• Black hole

Tags

NGSS.MS-ESS1-3

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

• Planetesimals

• Comets

• Asteroids

• Meteorite

The orbits of most ____________________ lie between Mars and Jupiter.

• Asteroids

• Comets

• Planets

• Satellites

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

• Comets

• Asteroids

• Planets

• Stars

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

• Meteorite

• Asteroid

• Comet

• Planetesimal

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

• Constellation

• Galaxy

• Asteroid

• Nebula

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

• Nuclear fusion

• Photosynthesis

• Condensation

• Evaporation

Tags

NGSS.HS-ESS1-1

NGSS.HS-PS1-8

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

• Black hole

• Red giant

• Comet

• Asteroid

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

• Spiral

• Elliptical

• Irregular

• Lenticular

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

• Main-sequence

• Red giant

• White dwarf

• Protostar