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100

what is this

moon

100

what is the fourth planet from the sun

Mars

100

The sun is

A star

100

what is saturns largest moon 

titan

100

what planet has a life

Earth 

100

what is the Earth's satellite?

the moon

200

what is the milky way

our home galaxy

200

what is a galaxy

a galaxy is a collection of stars planets asteroids 


200

what is gravity?

gravity is the force that keeps us on the  ground

200

what is bigger venus or earth

earth

200

We can see comet's "tail" of gas when it's 

Near the sun

200

what is the largest planet

Jupiter

300

what is the largest planet

jupiter

300

what is the center of our solar system

sun

300

which two planets have rings?

Jupiter and Uranus

300

The form of an orbit

An ellipse 

300

Earth is the 

3rd Planet from the sun

300

What color is the Earth from space 

Blue 

400

how many  planets are there in the solar system 

8

400

who was the first man on the moon

Neil Armstrong

400

what do you need to see galaxies 

A telescope 

400

what is another name for moon 

luna

400

what is the closest planet to Earth

Venus

400

what is the smallest planet

Mercury