The Solar System

How many planets are there in the solar system?

• 6

• 8

• 9

• 14

Tags

NGSS.MS-ESS1-3

Which is NOT part of our solar system? 

• the moons around Jupiter

• asteroids and meteoroids

• comets

• stars that are not the Sun

Tags

NGSS.MS-ESS1-3

The ____  are the four planets closest to the Sun

• outer planets

• gas giants

• inner planets

• larger

Some of the dwarf planets in our solar system are:

• Makemake, Ceres and Charon

• Pluto, Pallas and Eris

• Eris, Pluto and Nix

• Haumea, Pluto and Eris

Tags

NGSS.MS-ESS1-3

The outer planets are also called ________.

• terrestrial planets

• larger planets

• gas giants

• farthest planets

The outer planets have thick atmospheres of ____ and ______.

• oxygen and helium

• carbon dioxide and helium

• hydrogen and nitrogen

• Hydrogen and helium

The outer planets are made of _____.

• rock and ice

• rock and metals

• gas

• ice

The inner planets have few or no moons, no rings, and they rotate more slowly than the outer planets.

• True

• False

Which of the following objects is the center of our solar system?

• Pluto

• Earth

• Sun

• Asteroid

Tags

NGSS.MS-ESS1-2

Which group of planets are known as terrestrial planets?

• Earth, Mars, Jupiter, and Saturn

• Jupiter, Saturn, Uranus, and Neptune

• Mercury, Earth, Jupiter, and Uranus

• Mercury, Venus, Earth, and Mars