Chapter 7 Lesson 1 The Structure of the Solar System

An object that orbits the Sun, has a spherical shape, and has a mass greater than the mass of other objects near it is a(n)

• star

• planet

• asteroid

Tags

NGSS.MS-ESS1-2

NGSS.MS-ESS1-3

What keeps planets in orbit around the Sun?

• the Sun's mass

• the Sun's period of rotation

• the Sun's gravitational force

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NGSS.MS-ESS1-2

The planets in the solar system are so far apart that scientists measure the distances between them in

• miles

• kilometers

• astronomical units

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NGSS.MS-ESS1-3

an object made of gas, dust, and ice

• comet

• star

• period of rotation

• period of revolution

Tags

NGSS.MS-PS1-1

the time it takes an object to travel around the sun

• comet

• star

• period of rotation

• period of revolution

Tags

NGSS.MS-ESS1-2

the time it takes an object to spin once

• comet

• star

• period of rotation

• period of revolution

type of object at the center of the solar system

• comet

• star

• period of rotation

• period of revolution

spherical objects made mainly of solid, rocky materials

• asteroids

• outer planets

• inner planets

small, rocky objects that orbit the Sun between Mars and Jupiter

• asteroids

• outer planets

• inner planets

large spherical objects made primarily of the gases hydrogen and helium

• asteroids

• outer planets

• inner planets