Solar

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

• Earth

• Sun

• Moon

• Asteroid belt

Tags

NGSS.MS-ESS1-2

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

• Asteroid belt

• Sun

• Moon

• planets

Tags

NGSS.MS-ESS1-3

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

• astronomers

• astronauts

Tags

NGSS.MS-ESS1-2

NGSS.MS-ESS1-3

There are _________ planets in our solar system.

• 6

• 7

• 8

• 9

Tags

NGSS.MS-ESS1-3

The house illustrated here uses panels on the roof to collect a natural resource and convert it into electricity that can be used.
Which alternative energy source does this house use?

• Water

• Wind

• Solar

• Geothermal

Tags

NGSS.MS-PS3-5

Why is solar energy considered renewable energy?

• It's cheaper than fossil fuels

• The sun's energy would not run out for billions of years
  

• Solar energy recharges batteries

• All of them

___________ are objects made of ice, dust, and rocks that orbit the Sun.

• dwarf planets

• comets

• Asteroid belt

• Kuiper belt

• Oort Cloud

The _______ exists much further out than the Kuiper belt and is at the very edge of the Solar System. Scientists believe it is made up of thousands of small ice objects.

• dwarf planets

• comets

• Asteroid belt

• Kuiper belt

• Oort Cloud

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

• Milky Way

• Andromeda

• Messier 63

• Whirlpool

• Sombrero

Tags

NGSS.MS-ESS1-2

The inner and outer planets are separated by the __________.

• asteroid belt

• moon

• comets

• dwarf planets