Sun and Solar System

The rotating disk surrounding the young Sun became our

• moon

• planet

• comet

• solar system

In the heliocentric model, what is at the center of the solar system?

• Earth

• Mars

• The moon

• The Sun

Tags

NGSS.MS-ESS1-1

Copernicus suggested that Earth and all the other planets orbit the Sun . This is known as the ___________________ model of the solar system.

• suncentric

• geocentric

• heliocentric

Astronomers think that the solar system formed from an interstellar

• rocks

• clouds

• explosions

• debris

Space objects built of solid particles that can form planets through collisions and mergers are called

• comets

• asteroids

• planetesimals

Theories of the origin of the solar system rely on direct ___________________ and data from probes.

• satellites

• observations

• stories

Tags

NGSS.HS-ESS1-6

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.

Early astronomers thought that the Sun, planets, and stars orbited a stationary Earth . This is known as the __________________ model of the solar system.

• Heliocentric

• Disk

• Geocentric

• Kepler

Which are space objects built of solid particles that can form planets through collisions and mergers?

• asteroids

• meteoroids

• planetesimals

• comets

What is the primary source of energy for the Earth?

• The Moon

• The Sun

• Mars

• Jupiter

Tags

NGSS.HS-ESS1-1