This is the time of day it is when your part of the Earth is turned away from the Sun.
What is night time?
This is the path the Earth follows around the Sun.
What is an orbit?
What are ziggurats?
This is the name of the invisible line the Earth is tilted on.
What is axis?
This imaginary line divides Earth into Northern and Southern Hemispheres.
What is the Equator?
This daily motion of the Earth causes day and night.
What is rotation?
It takes the Earth this many days to complete one revolution around the Sun.
What is 365 days?
Before clocks, people used this type of device to help keep track of time.
What is a sun dial?
When it is winter in the Northern Hemisphere, it is this season in the Southern Hemisphere.
What is summer?
These are the imaginary lines above and below the Equator.
What are the Tropic of Cancer and the Tropic of Capricorn?
The Earth rotates in this direction when viewed from above the North Pole.
What is counterclockwise?
This is the shape of the Earth's orbit around the Sun.
What is an ellipse or oval?
This Italian scientist used one of the first telescopes to see mountains on the Moon and moons around Jupiter.
Who is Galileo?
The Northern Hemisphere has the longest day of the year during this solstice.
What is summer solstice?
Sunlight that hits Earth directly makes this zone hotter.
What is the torrid zone?
The Earth completes one full rotation in this many hours.
What is 24 hours?
When the Northern Hemisphere is tilted toward the Sun, it is this season there.
What is summer?
This ancient civilization worshipped the Sun god, Ra.
What is Egypt?
This occurs when day and night are almost equal everywhere on Earth.
What is an equinox?
The area around the North Pole that has extreme daylight or darkness are called this.
What is the Arctic Circle?
The Sun appears to rise from this direction.
This special kind of year happens every four revolutions around the Sun.
What is a leap year?
Before Copernicus, most people believed the Sun revolved around the Earth. What word describes his idea that the Earth revolves around the Sun?
What is heliocentrism?
The tilt of the Earth's axis is how many degrees?
These are the three main temperature zones on the planet.
What are torrid, temperate, and frigid?