1.2 Earth in Space
Opposite seasons
Countries in the northern and Southern Hemispheres have..
West to East
The direction the earth rotates.
June 21st---Summer Solstice
The longest day of the year for the northern hemisphere and the shortest for the southern hemisphere.
December 21st---Winter solstice
The longest day of the year for the southern hemisphere and the shortest for the northern hemisphere.
Tilt of the axis
What causes Earth's seasons?
winter at the poles
Where would there be 24 hours of darkness?
summer at the poles
Where would there be 24 hours of daylight?
Rotation
the act or process of moving or turning around a central point. The Earth rotates on its axis.
Revolution
the action of moving around something in a path that is similar to a circle. The Earth revolves or orbits the Sun (1 year).
Orbit
the path that a body follows as it travels around another body in space
Sunset
the time in the evening at which the sun begins to fall below the horizon (West).
March 21st
N. Hemisphere Spring Equinox. Equal day to equal night. Marks the beginning of spring.
March and September
Equinoxes---- Months of the year where there is equal day hours to night time hours.
Hemisphere
Half of a sphere a half of the earth, usually as divided into northern and southern halves by the equator, or into western and eastern halves by an imaginary line passing through the poles.
24 hours
How many hours of darkness the south pole has during the winter solstice
September 21st
N. Hemisphere Fall Equinox. Equal day and equal night. Marks the beginning of Fall.
Ecliptic
Path the sun takes across the sky
67,000 mph
The rate at which the Earth orbits the Sun.23.5
23.5* Tilt of Earth
The reason the Earth experiences seasons.
Day and Night
The rotation of the Earth gives us...?
1000 mph
The speed at which the earth rotates at the equator
Sunrise
a time in the morning when the sun appears (East).
