7.9a 7.9b

Place the Inner and Outer Planets into the correct category

Groups:

(a) Inner Planets

,

(b) Outer Planets

• Mercury

• Earth

• Mars

• Venus

• Uranus

• Saturn

• Jupiter

• Neptune

Tags

NGSS.MS-ESS1-3

Two factors that help a planet stay in orbit ​ (a)   (the pull) and​ (b)   (object in motion stays in motion)

• gravity

• inertia

• acceleration

• velocity

• resistance

Answer explanation

Gravity is the force that pulls a planet towards the sun, keeping it in orbit. Inertia is the tendency of an object to stay in motion, which helps maintain the planet's path. Together, they ensure stable orbits.

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

The outer planets are made mostly of

• rock

• gas

• flames

How do comets and asteroids compare?

• Asteroids and comets are rocky.

• Comets and asteroids are made of ice and dust.

• Asteroids are rocky, while comets are made of ice and dust.

• Comets are rocky, while asteroids are made of ice and dust.

what makes a meteoroid, meteor, and a meteorite different? (best answer)

• color

• size

• location

• texture

The doughnut-shaped region, just past Neptune, where icy objects have stable orbits is called ___

• the Gerard Belt

• the Scattered Disk

• the Kuiper Belt

• the Kuiper Disk

Tags

NGSS.MS-ESS1-3

The third region of icy objects, a spherical cloud which starts roughly 300 billion kilometers out, is called ___

• the Oort Cloud

• the Oort Disk

• the Kuiper Cloud

• the scattered disk

Tags

NGSS.MS-ESS1-3

The planets ___

• Orbit the Sun

• Orbit the Moons

• Orbit the Galaxy

• Orbit Earth

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

Which of the following will NOT change in different gravities?

• Weight

• force

• mass

• pounds

As distance between two objects increases, the pull of gravity 

• Increase

• decrease

• stays the same

• has not effect