Numbers

3-2 The Gas Giants & Pluto

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After the asteroid belt toward the outer boundaries of the solar system are located the planets Jupiter, Saturn, Uranus, and Neptune.  These planets are known as "the Gas Giants."  Planet number five, Jupiter, is the largest of the gas giants.  Jupiter is so big that 1,300 Earths could fit inside it.  The surface of Jupiter is hydrogen gas, and liquid hydrogen is inside.  Jupiter has a Great Red Spot visible on its surface.  This is a violent storm of swirling gases.  Jupiter has at least sixteen moons.

The sixth planet, Saturn is the "ringed planet."  Its rings are made of ice and ice-covered rocks and dust.  Astronomers aren't sure where they came from.  Saturn has twenty-three moons.  One of these moons is called Titan.

Uranus, the seventh planet is unusual because it is tilted on its side.  The rings of Uranus look vertical because of this unusual tilt.  Uranus appears to be greenish in color when seen through a telescope.

The last gas giant, Neptune is the eighth planet from the sun.  Neptune was discovered by accident in 1846.  Voyager 2 photographed it in 1989.  The pictures showed Neptune to be stormy and frozen, and bluish in color.  Neptune can be seen from Earth, but only with a telescope.

The dwarf planet, Pluto, is the tiniest of all planets.  It is the outermost known planet in our solar system.  Pluto takes 248 Earth-years to make one complete orbit around the sun.

Directions: Answer the questions about "the Gas Giants" and Pluto.

Put the planets in order from the sun.  Use 1, 2, 3, 4, 5, 6, 7, 8, 9. Earth
Jupiter
Mercury
Neptune
Mars
Pluto
Uranus
Venus
Saturn
Which of "the Gas Giants" is the largest? Saturn
Uranus
Neptune
Jupiter
Which of "the Gas Giants" is tilted on its side? Saturn
Uranus
Neptune
Jupiter
Which of "the Gas Giants" has a Great Red Spot visible on its surface? Saturn
Uranus
Neptune
Jupiter
What is the Great Red Spot? moon
mountains
storm
Which planet is known as the "ringed planet?" Saturn
Uranus
Neptune
Jupiter
What are these rings made of? clouds
gases
ice/ice-covered
    rocks and dust
Which planet has twenty-three moons? Saturn
Uranus
Neptune
Jupiter
Pluto
Which planet is greenish in color? Saturn
Uranus
Neptune
Jupiter
Pluto
Which is the dwarf planet in our solar system? Saturn
Uranus
Neptune
Jupiter
Pluto
Which planet was discovered by accident? Saturn
Uranus
Neptune
Jupiter
Pluto
Which planet is stormy and frozen, and bluish in color? Saturn
Uranus
Neptune
Jupiter
Pluto
Which planet takes 248 Earth-years to make one complete orbit around the sun?

Neptune
Jupiter
Pluto

Which planet has a moon named Titan? Saturn
Uranus
Neptune
Jupiter
Pluto

 

 

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Types of Planets in our Solar System