Earth and space

The sun is a medium-sized ____________.

What is the sun?

• It is a spherical, rocky mass.

• It is a star at the center of the Solar System.

• It is a planet.

• It is a star and a hot ball of glowing gases.

• It is a star at the center of our universe.

These are dark spots on the sun's surface.

• atmosphere

• solar flare

• sunspots

It is an explosive eruption of waves and particles from the sun's surface into space.

• sunspots

• solar flare

• photosphere

A ______________ is a group of stars that forms a pattern.

They are small, rocky objects that orbit the Sun. Most of them live in the main belt between the orbits of Mars and Jupiter.

• Asteroids

• Comets

• Meteors

A frozen mass of different types of ice and dust orbiting the sun is a _____________.

Which is true of the dwarf planets?

• orbit the Sun

• much larger in size than planets

• have no cleared the region around their orbit as planets have

• they're generally round

Pluto is a dwarf planet.

• True

• False

Which of these is not a dwarf planet?

• Pluto

• Makemake

• Ceres

• Saturn