Objective 2: Describe past and current models of the solar system.

Which of these best describes the heliocentric model of the solar system?

• The sun is at the center. Earth and all the other planets orbit the sun.

• The sun is at the center. Earth orbits the sun, and the other planets orbit Earth.

• Earth is at the center. The sun and all other planets orbit Earth.

• Earth is at the center. The sun orbits Earth, and the other planets orbit the sun.

Tags

NGSS.MS-ESS1-1

How would a person who believes in the geocentric solar system model explain the movement of the sun across the sky during the day?

• The sun is revolving around a stationary Earth.

• The sun is revolving around the moon, which in turn is revolving around Earth.

• Both Earth and the sun are stationary; the movement is due to Earth’s rotation.

• Earth is revolving around a stationary sun.

Tags

NGSS.MS-ESS1-1

Which of these best describes the geocentric model of the solar system?

• The sun is at the center. Earth orbits the sun, and the other planets orbit Earth.

• The sun is at the center. Earth and all the other planets orbit the sun.

• Earth is at the center. The sun orbits Earth, and the other planets orbit the sun.

• Earth is at the center. The sun and all other planets orbit Earth.

Which describes the solar system model of Copernicus?

• Planets were in figure eight orbits

• Planets often revolved around each other

• The planets orbit the Sun.

• The other planets, Moon, and Sun all orbit the Earth.

Which describes the solar system model of Ptolemy?

• Planets were in figure eight orbits.

• The other planets, Moon, and Sun all orbit the Earth.

• The planets orbit the Sun.

• Planets revolve around each other.

Marty learned about the solar system. Which statement best describes how the planets in the solar system are the same?

• All the planets orbit the Sun.

• All the planets have many moons.

• All the planets are about the same size.

• All the planets have similar temperatures.

Tags

NGSS.MS-ESS1-3

Galileo made an important contribution to science by

• proving the existence of other planets.

• discovering the origins of stars.

• determining the causes of eclipses.

• providing evidence for a heliocentric universe.

This diagram illustrates an early model that explained observations about the solar system.

Based on the current understanding of the solar system, what is a fundamental error of this model?

• Venus has a larger orbit than Mercury.

• The Moon is shown too close to Earth.

• Earth is shown as the center of the solar system.

• The orbit of Mars is located inside the orbit of Jupiter.

Tags

NGSS.MS-ESS1-1

This picture represents which kind of model of the solar system?

• heliocentric

• lunarcentric

• geocentric

• star-centric

Tags

NGSS.MS-ESS1-1

This picture represents which kind of model of the solar system?

• geocentric

• heliocentric

• lunarcentric

• star-centric

Tags

NGSS.MS-ESS1-1