Planets
The red planet
What is Mars?
Dark spots on the Sun's surface
What are sunspots?
The start of Spring
What is the Vernal equinox?
A complete turn of a planet on its axis
What is a rotation?
The brightest object in the morning and evening skies
What is Venus?
The planet closest to the Sun
What is Mercury?
The outermost part of the Sun
What is the corona?
The longest day of the year in a hemisphere
What is the Summer solstice?
Earth's barren and scarred satellite with craters
What is the Moon?
The planet with the most violent weather
What is Neptune?
The planet that rotates on its side
What is Uranus?
The Sun's atmosphere
What is the chromosphere?
Equal length of day and night
The 1 year orbit that a planet makes around the Sun
What is a revolution?
A large storm on Jupiter
What is the Great Red Spot?
The smallest planet
What is Pluto?
Storms on the Sun that cause problems with Earth's satellites and GPS signals
What are magnetic storms?
The time it take the Earth to revolve around the Sun
What is 365 1/4 days?
The imaginary line around which a planet rotates
What is an axis?
Sometimes called Earth's twin
What is Venus?
The "ringed planet"
What is Saturn?
The atmosphere of Mars
What is carbon dioxide?
An object that orbits another space body
What is a satellite?
The first artificial satellite
What is Sputnik I?
The largest planet
What is Jupiter?