#1
The part of the universe we can see
What is the observable universe?
We live in this galaxy
What is the Milky Way?
The only planet we know has life
What is Earth?
The ground of a planet is rocky ground
What is a terrestrial planet?
This causes the seasons
What is the Earth's tilt?
Latitude of the North Pole
What is 900 N?
The art of making maps
What is cartography?
Stand in place and slowly turn about your axis
What is to rotate?
One full revolution of the Earth around the Sun
What makes one year?
Another name for habitable zone
What is the Goldilocks Zone?
Lines that travel North and South
What are the lines of latitude?
Three types of galaxies
What is elliptical, spiral, and irregular?
The starting point for the lines of longitude
What is the Prime Meridian?
Position in the solar system where life could be possible
What is the habitable zone?
Giant, invisible bubble that protects the Earth from dangerous space particles
What is the magnetosphere?
Another name for the antimeridian at 1800 longitude
What is the International Date Line?
The calendar changes into the next day when the prime meridian is at noon
What is the International Date Line?
What would happen with the water on a planet if it is too close to the sun?
What is too hot for life to exist? OR What is water vaporization?
The invisible force that pulls objects towards each other
What is gravity?
Number of time zones that cross over the Unites States of America
What is four?
Name of the time zones crossing over the USA
What is Eastern, Central, Mountain, and Pacific?
Designate East and West
What are meridians? (line of longitude)
Are parallel and equal distance from each other
What are the lines of latitude (parallels)?
Degrees wide in a time zone
What is 150?
The reason for the number of time zones on our planet
What is the 24-hour rotation of the Earth?