sun
earth
moon
other planets
other stars
100

where is the sun 

what is the solar system

100

what is earth 

what is a planet

100

what does the moon orbit 

what is earth

100

what is the smallest planet in the solar system

what is mercury

100

what color is the coldest of stars

what is red

200

what is the sun

what is a star

200

what planet is earth from the sun

what is the third planet

200

what makes the moon not a planet

what is orbiting a planet

200

what is largest planet

what is jupiter

200

what is the medium color of stars

yellow

300

why does the planets revolve around the sun

what is the sun ´ s gravitational pull

300

what does earth rotate around

what is the sun

300

what is a moon

what is rock rotating around a planet.

300

what is the sixth planet from the sun

what is saturn

300

what is hottest color of star

blue

400

how far away is the sun

what is 93million miles away

400

what does earth rotates on 

what is earth´s axis

400

about how far does the moon rotate away from every year

what is 3.8cm

400

hottest planet in solar system

what is venus

400

what are stars made of 

what are gasses

500

how hot is the sun core

what is 27million

500

how large is earth

what is 510 million km

500

how large is the moon compared size to earth

what is 1/4 of the earths size

500

coldest planet ever

OGLE-2005-BLG-390Lb

500

what is the largest star?

what is betelgeuse.