solar system and planets

Which of the following are galaxy types?

• Spiral

• Elliptical

• Spherical

• Irregular

Tags

NGSS.MS-ESS1-2

Select all that apply

Which are true about the terrestrial planets?

• They formed by the merging of planetesimals in the inner part of the main disk.

• They are composed of elements that did not vaporize.

• They formed by the merging of icy planetesimals near the outer part of the main disk.

• They are rocky and dense.

The four terrestrial planets are Mercury, Venus, Earth, and Neptune.

• true

• false

How is a planetesimal formed?

• They are formed when hydrogen particles cool rapidly

• They are formed when dust and gas particles become larger clumps.

• They are formed when radiation causes gas and dust particles to expand.

• They are formed when gas particles separate themselves from dust particles.

Place these objects in order from smallest to largest.

• Planets, solar system, universe, galaxy
• Solar system, planets, galaxy, universe
• Planets, solar system, galaxy, universe
• Galaxy, solar system, planets, universe

Tags

NGSS.MS-ESS1-3

The sun is a minimal component of the solar system in terms of mass.

• true

• false

Tags

NGSS.MS-PS2-4

Phobos and Deimos are moons of what planet?

• Jupiter

• Mars

• Saturn

• Venus

Tags

NGSS.MS-ESS1-2

NGSS.MS-ESS1-3

The density of gas in a collapsing interstellar cloud is low at first, but ____________________draws matter together until it is concentrated enough to form a star and possibly planets.

• space

• mass

• gravity

• dust

Tags

NGSS.MS-ESS1-2

Jovian planets hold more gases due to having a larger mass that contains gas and being farther away from the sun being exposed to less solar heating.

• true

• false

Triton is the largest moon of what planet?

• Jupiter

• Saturn

• Uranus

• Neptune