surface
kepler's laws
planet
gas giants
Seasons, days, Years
100

the surface of Earth is...

rocky with deserts, and mountains and oceans

100

the definition of an ellipse is... 

an elliptical, round shape with two foucuses 

100

this is our home planet

Earth

100

this planet has a system of intricate and beautiful rings  

saturn

100

If the northern hemisphere is pointed toward the sun, what season is it?

It is summer for the northern hemisphere.

200

the surface of Mercury is...

rocky, dry and hot

200

the definition of perihelion is...

the place in a planet's orbit that is closest to the sun

200

the surface of this planet is rocky, dry, and hot

mercury

200

this planet is named after the roman god of the sea

neptune

200

what causes the seasons

earths tilt

300

the surface of Venus is...

hot, and covered in lava lakes. the atmosphere is made of mostly sulfuric acid so you would not be able to breathe

300

Kepler's first law is...

all planets orbits are not circles but ellipses with the sun at one focus 

300

this gas giant is the largest planet in the solar system

jupiter

300

this planet has a tilt on its axis of 98*so it rotates on its side

Uranus

300

what is the scientific term for the spring equinox

the vernal equinox

400

the surface of the moon is

rocky, dry, windless, and cold.

400

Kepler's second law is...

that a planet moves faster at perihelion and slower at aphelion and both times sweep out equal distance in equal time

400

this planet has a great dark spot on its surface much like jupiter

Uranus

400

which planet is named after the roman king of the gods

jupiter

400

what is the scientific term for the fall equinox

the autumnal equinox

500

the surface of mars is

rocky, icey, and red

500

Kepler's third law is...

(orbital period in years)2 = (average distance from the sun in astronomical units[AU])3  Kepler's third law is a mathematical equation

500

this "planet" was named a dwarf planet in 2006

pluto

500

gas giants are mainly composed of what two gases

hydrogen and helium

500

what tilt does the earth have on its axis

23.5*