Download Solar System - Spring Branch ISD

A solar system refers to a ____
star and all
objects that travel in orbit around it.
the _______
Our solar system consists of:
 The Sun (our star)
 Eight planets
 Dwarf planets
 Asteroids and comets
 The Oort Cloud
Our solar system is located in an
outward spiral of the __________
Milky Way
galaxy.
Sun
The center of our solar system is the ___.
The sun..
 .. is the largest
_______ object in our solar
system.
heliocentric which
 This theory is called _________
is a sun centered universe
 .. is a star, a hot ball of glowing
gases
______.
Our solar system contains 8
_______
planets . A planet is….
star
 An object that orbits a ____.
 An object that shines by
________
reflected light.
The Terrestrial Planets
closest to the Sun are
The four planets _______
called the terrestrial planets because
they have _____
solid rocky surfaces.
Mercury
Venus
Earth
Mars
Asteroids
Mars and Jupiter
Between the orbits of _______________
there is an asteroid belt. Asteroids are small,
rocky metallic bodies that orbit the Sun.
______,
minor planets.
They are actually ______
Comets
a celestial object consisting of a _________
nucleus of
_______and
________,
dust when near the sun, a
ice
“tail” of gas and dust particles pointing
away from the sun.
_______
The Gas Giants
The four large planets beyond the asteroid
___________
belt are
Jupiter
called gas giants. These planets are _______,
Neptune These planets
________,
Saturn _________,
Uranus and ________.
are gaseous in nature, composed of mostly
hydrogen and helium
____________________.
The gas giants are ______
larger and much less ______.
dense
______
Pluto was originally considered the
ninth planet but has been recently
classified as a ______
dwarf planet.
Beyond the orbit of Pluto is the __________.
Oort cloud The
Oort cloud is a spherical cloud that surrounds
the Solar System and lays roughly a light-year
________
from the Sun. It contains an estimated 10 trillion
comets with the combined mass of the Earth.
_______