Early astronomers believed (a)   was the center of the universe and all other heavenly bodies.

• sun
• moon
• Earth
• comets

The _____ is the center of our solar system.

Tags

NGSS.MS-ESS1-2

Our solar system has _____ planets.

Planets that are made up mostly of rocks and minerals are (a)   planets.

• cosmic
• terrestrial
• otherworldly
• heavenly

Sort the planets into the correct category.

Groups:

(a) Terrestrial planets

,

(b) Gas Giants

• Neptune

• Venus

• Jupiter

• Earth

• Mars

• Uranus

• Mercury

• Saturn

Tags

NGSS.MS-ESS1-3

(a)   is the planet that is smaller than all other planets, heavily cratered, looks like our moon, and is located closest to the sun.

• Mercury
• Mars
• Pluto
• Venus

Tags

NGSS.MS-ESS1-3

(a)   is similar to Earth in size and mass, and has a blanket of clouds that trap the thermal energy from the sun.

• Mars
• Mercury
• Venus
• Uranus

What are three major factors of Earth that make life possible?

• air

• oceans

• water

• distance from the sun

Tags

NGSS.MS-ESS2-4

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Pluto is no longer considered a planet in our solar system due to its small ​ (a)   and irregular (b)  

• size
• orbit.
• oceans
• atmosphere

How does the size of the sun compare to the planets?

• The sun is smaller than all the planets.

• The sun is about the same size as Earth.

• The sun is larger than all the planets.

• The sun is the same size as Jupiter.

Tags

VA.4.5.c