Planets: Part 1

How many planets are there?

• 7
• 8
• 9
• 10

What does the word terrestrial mean?

• Warm planets
• planets with moons
• planets with ailens
• Rocky planets

What is the correct order of planets from the sun?

• Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune
• Mars, Venus, Earth, Mercury, Jupiter, Saturn, Uranus, Neptune
• Mercury, Venus, Earth, Mars, Jupiter, Saturn, Neptune, Uranus
• Jupiter, Saturn, Venus, Earth, Pluto, Mars, Mercury, Neptune

The inner and outer planets are divided by...

• The asteroid belt
• The oort cloud
• The kuiper belt
• a fraction

The outer planets have solid, rocky surfaces.

• True

• False

What is Pluto MOSTLY made of

• carbon dioxide

• Nitrogin Ice

• methane

• carbon

Tags

NGSS.MS-PS1-1

In order for a celestial object to be a "planet" it must...

• orbit a star (like our sun)

• have enough mass to be pulled into a stable sphere by gravity

• dominate its orbit

• be at least the same size as Mercury

Tags

NGSS.MS-ESS1-2

Terrestrial means...

• terrifying

• earth-like; rocky

• teleportation

• flat dirt or soil

There are two types of planets. Match the following characteristics with the correct​ type of planet.

Groups:

(a) Terrestrial

,

(b) Gas Giant

• low density

• thick atmosphere

• high density

• Rocky

• composed mostly of gases

• much larger

• Smaller

• may have a thin atmosphere

Planets form from when matter clumps together due to...

• law of conservation of mass

• Newton's laws of motion

• love

• gravity

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4