Solar system

The center of our solar system is the....

• Earth

• Sun

• Moon

• Asteroid belt

Our solar system is part of a bigger grouping of stars called the ___________ galaxy.

• Milky Way

• Andromeda

• Messier 63

• Whirlpool

• Sombrero

___________ was once considered a full planet but was redefined as a dwarf planet in 2006.

• Pluto

• Mars

• Ceres

• MakeMake

About 99.85% of the mass of the solar system is the __________.

• Asteroid belt

• Sun

• Moon

• planets

Tags

NGSS.MS-ESS1-3

NGSS.MS-PS2-4

Scientists who study the solar system and outer space are called ______________.

• astronomers

• astronauts

Tags

NGSS.MS-ESS1-3

All rotation and revolution lengths are the same for each planet.

• true

• false

Tags

NGSS.MS-ESS1-3

What is the imaginary line that runs through the center of the Earth?

• axis
• revolution
• axle
• satellite 

When the southern hemisphere has winter, what season does the northern hemisphere have?

• winter
• spring
• summer
• fall

Tags

NGSS.MS-ESS1-1

The sun is a _______________.

• planet
• satallite
• galaxy
• star

Tags

NGSS.MS-ESS1-1

It takes the earth one year to make one what?

• revolution
• rotation
• turn
• flip 

Tags

NGSS.MS-ESS1-1