Solar System

A planet goes around another object in space - (a)  

A planet spins on its own axis - (b)  

A planet orbits the Sun - (c)  

• Orbit
• Rotation
• Revolution

Answer explanation

An orbit is a regular, repeating path that one object in space takes around another one. Rotation" refers to an object's spinning motion about its own axis. "Revolution" refers the object's orbital motion around another object. For example, Earth rotates on its own axis, producing the 24-hour day. Earth revolves about the Sun, producing the 365-day year.

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

​ (a)   is the fastest planet in orbit around the Sun in contrast to ​ (b)   which takes the longest to orbit the Sun.​

• Mercury
• Neptune

Answer explanation

Mercury is the fastest planet in orbit around the Sun in contrast to Neptune which takes the longest to orbit the Sun, because as the planets get further away from the Sun the orbital period increases .

______ is unique among the planets because it rotates on its side. Also along with Venus it rotates in the opposite direction from Earth.

Answer explanation

Uranus is unique among the planets because it rotates on its side. Also along with Venus it rotates in the opposite direction from Earth.

The 4 inner planets (Mercury, Venus, Earth, Mars) are known as ​

• 
  terrestrial planets

• dwarf planets

• 
  gas giants

• solar planets

Answer explanation

The 4 inner planets (Mercury, Venus, Earth, Mars) are known as terrestrial planets .

The four outer planets (Jupiter, Saturn, Uranus, and Neptune) are Known as

• 
  terrestrial planets

• 
  solar planets

• gas giants

• 
  the best planets

Answer explanation

The four outer planets (Jupiter, Saturn, Uranus, and Neptune) are Known as gas giants .

Match the following

• Mars

• I am known as the "red planet" because of the iron oxide that covers me.

• Earth

• I am the only known planet to support life , because my atmosphere is breathable due to the unique mixture of gases

• Mercury

• I am the brightest and hottest planet. I am also Known as Earth's "sister planet"

• Venus

• I am freezing cold in the shade and really hot in the light on my surface due to the lack of atmosphere .

Answer explanation

Venus is the brightest and hottest planet. It's also Known as Earth's "sister planet". Mars is known as the "red planet" because of the iron oxide that covers it . Mercury is freezing cold in the shade and really hot in the light on it's surface due to the lack of atmosphere . Earth is the only known planet to suppor t life , because it's atmosphere is breathable due to the unique mixture of gases.

​ (a)   is famous for its extensive and stunning ring system . ​ (b)   is the largest planet in the solar system which has a prominent feature called the Great Red Spot . ​ (c)   and ​ (d)   look blue because of methane in their atmosphere.

• Saturn
• Jupiter
• Uranus
• Neptune

Answer explanation

Saturn is famous for its extensive and stunning ring system . Jupiter is the largest planet in the solar system which has a prominent feature called the Great Red Spot . ​Uranus and ​Neptune look blue because of methane in their atmosphere.

What is the correct order of the inner planets in the Solar System, starting closest to the Sun?

• Venus

• Mars

• Earth

• Mercury

Answer explanation

The correct order of the inner planets in the Solar System, starting closest to the Sun is :

1. 1. Mercury

2. 2. Venus

3. 3. Earth

4. 4. Mars

What is the correct order of the outer planets in the Solar System, starting closest to the Sun?

• Jupiter

• Neptune

• Uranus

• Saturn

Answer explanation

The correct order of the outer planets in the Solar System, starting closest to the Sun is :

1. 1. Jupiter

2. 2. Saturn

3. 3. Uranus

4. 4. Neptune

What is the correct order from largest to smallest ?

• Solar System

• Planet

• Galaxy

• Universe

Answer explanation

The correct order from largest to smallest is :

1. 1. Universe

2. 2. Galaxy

3. 3. Solar System

4. 4. Planet

5. The galaxy that contains the Earth and its solar system is called the Milky Way. Solar systems orbit around their galaxies just as planets orbit around their suns. The Universe is the largest. All things, including galaxies and solar systems, are included within the Universe.