The Solar System: A Brief Overview

The solar system formed about 4.6 ____ years ago from a cold, diffuse cloud of dust and gas rotating slowly in space.

Tags

NGSS.MS-ESS1-4

Any object -- including a rocket or a gas molecule -- can escape from a planet's gravity when it reaches a speed known as what?

• escape speed

• leaving speed

• escape velocity

• gone velocity

Tags

NGSS.MS-PS3-1

The higher the temperature, the higher the average what of gas particles?

• speed

• time

• velocity

• mass

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-1

NGSS.MS-PS3-4

Combining all processes, the inner planets -- Mercury, Venus, Earth, and Mars -- lost most of their gases, leaving behind protoplanets composed mostly of what?

• gases and liquids

• acids and bases

• nonmetals and metalloids

• metals and silicate rocks

Tags

NGSS.MS-PS1-1

The innermost planets characterized by their rocky exteriors are known as the ​​ (a)   planets. The outermost planets characterized by their large and gaseous status are known as the ​ (b)   planets.

• terrestrial
• Jovian

Today, the Jovian planets all have relatively small, rocky or metal what?

• surfaces

• mantles

• cores

Tags

NGSS.MS-PS1-1

Place the planets in order of their position relative to the sun (1 closest, 5 furthest)

• Jupiter

• Mars

• Venus

• Mercury

• Earth

Tags

NGSS.MS-ESS1-3

Due to the difference in composition, the terrestrial planets are what compared to the Jovian planets?

• lighter

• denser

• bigger

• brighter