Small Solar System Bodies
Asteroids
Comets
Kuiper Belt & Oort Cloud
Meteors
200

Term for all objects in the solar system that are not planets or moons.

Small Solar System Body

200

Small, orbiting body remaining from the formation of the solar system

Asteroid

200

This is the central mass of a comet

Nucleus

200

Region beyond Neptune that contains many icy bodies.

Kuiper Belt

200

Small piece of rock or metal in space (before it enters Earth’s atmosphere).

Meteoroid

400

The farthest comets come from this region

Oort Cloud

400

This is the location of the asteroid belt

Mars and Jupiter

400

This is the thin atmosphere of a comet

Coma

400

Vast, distant spherical cloud of icy bodies surrounding the solar system.

Oort Cloud

400

Many meteors enter Earth's atmosphere within a short period of time

Meteor shower

600

Give three examples of small solar system bodies.

Asteroid, comet, meteor

600

Asteroids are chemically similar to these other bodies

Meteors

600

Particles of a comet's dust tail are pushed by this

Pressure from sunlight

600

This was the first dwarf planet discovered in the Kuiper Belt

Pluto

600

A meteoroid that survives the trip through the atmosphere and lands on Earth’s surface.

Meteorite

800

Icy bodies often called “dirty snowballs.”

Comet

800

Fine particles on asteroids are located at this elevation

Low

800

The plasma tail of a comet are caused by this.

Solar winds

800

Why was the new category “dwarf planet” created?

Objects similar to Pluto were discovered in the Kuiper Belt

800

These are the two principal types of meteorites

Iron, Stony

1000

Name the two main criteria for an object to be classified as a dwarf planet.

Spherical due to its own gravity; not large enough to clear its orbit

1000

This is the dwarf planet in the asteroid belt

Ceres

1000

This historical comet returns to Earth up to every 200 years

Halley's Comet

1000

What causes comets to leave the Kuiper Belt?

Gravity from the outer planets

1000

This type of meteorite contains amino acids

Carbonaceous chondrite