The Four Seasons
What are the 4 seasons?
Summer Spring Fall(Autumn) Winter
Summer takes place from June to _______
September
When do we experience Daytime?
When we are facing the Sun.
What are Solstices?
-Summer & Winter
- The longest or shortest days of the year
The point where Earth is furthest from the Sun.
Aphelion
What is a season?
A period of weather, temperature changes and hours of sunlight that correspond to a certain location on Earth
On the days of the equinoxes, how many hours of sunlight does the earth receive?
12
The Earth has a tilt of how many degrees
23.5 degrees
What are Equinoxes?
Equinoxes are days in which day and night are of equal duration - 12 hours.
The point where the Earth is the closest to the Sun.
Perihelion
Why do seasons change?
Seasons change because the tilt of the Earth's axis causes places on Earth to receive different amounts of sunlight throughout the year.
What are the times called when the Earth’s axis has its greatest tilt toward or away from the Sun?
Solstices
The Earth's tilt.
Axis
What is a hemisphere?
Half of the earth cut in the middle by an invisible line (Equator 0)
What is the current season?
Spring
Which two seasons occur when the sun is 'hitting' most directly at the equator?
Spring and autumn
When Spring and Autumn begin, where is the sun?
Directly above the equator
As the Earth revolves around the Sun. How are seasons caused?
The Sun's light strikes earth at different angles as it revolves around the sun, causing seasons
What is Altitude?
The height of an object or point, in relation to sea level.
It takes how many days for Earth to go around the sun?
365.25 days
What are the reasons for our seasons?
~Earth's rotation around the sun
~The tilt of the Earth's axis
The March equinox is the beginning of what season in the Southern Hemisphere?
Autumn
Through the center of the Earth, there is an imaginary line running through it. Where does this imaginary line start and stop?
North and south pole
All objects attract each other with a force that is directly proportional to the product of their masses and inversely proportional to their distance of separation.
Law of Universal Gravitation
This law states that the closest planets travel at the greatest speeds and have the shortest orbital periods.
Kepler's 3rd Law or Harmonic Law