The Earth, the Moon, and the Sun. Physical Science 2011-2012. The Earth in Space Section 7-1. Gravity from the Earth-Moon-Sun system directly affects the conditions for life here on Earth. The Physical Characteristics of the Earth. Diameter (12,714 km/7,926 mi.)
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Gravity from the Earth-Moon-Sun system directly affects the conditions for life here on Earth.
The Earth’s magnetic field helps protect the Earth from harmful radiation/energy from the Sun.
Areas of charged particles (protons and electrons) that circle the Earth above the atmosphere. The particles are held in place by gravity and are called the “Van Allen belts”.
A stream of particles called the “solar wind” flow through space from the Sun toward the Earth and collide with the magnetic field that causes them to flow down toward the north and south poles.
The “solar wind” particles then collide with atoms in the atmosphere at the poles and cause the solar wind particles to give off light.
People have used the movements of the Earth, Moon, and Sun to measure time for thousands of years.
Lines running east to west that when used with lines of latitude help us calculate position on the Earth. GPS
The Earth is tilted 23.5 degrees
The 23.5 degree tilt causes the angle that the sun hits the Earth to change throughout the year.
The moon revolves once around the Earth every 27 days.
The surface of the Moon is barren rock, this is how the Earth would look with no water or plant life
This theory stated that the moon formed somewhere else in the solar system and was pulled in by the gravitational pull of the Earth.
The Moon condensed from the same loose space material as the Earth did.
A portion of molten material was ejected from the Earth as it cooled.
The Giant Impact Theory