All About that Moon Brother! And the earth's tasty seasons & plate tectonics
Roni Rountree

The Phases of the moon!
The Moon Affects our tides and oceans!

One of the phases of the moon is the gibbous moon where the moon is more than half full, but less than full.  Also, A crescent moon is part way between a half moon and a new moon, or between a new moon and a half moon.  Waning is when the moon is decreasing in size and waxing is when the moon is increasing in size.  When there is a waning moon, The right side of a full moon gets darker, when the moon is waxing, the left side of a new moon gets less dark from the left side.  A lunar cycle is is the shape of the illuminated (sunlit) portion of the moon.  This happens every 29.53059 days.  

Who was Copernicus?  He was an astrologist who discovered that the earth orbits around the sun.  Our earth has seasons because one hemisphere of earth tilts toward the sun when it is summer for that hemisphere.  The earth is closer to the sun in winter but it is still cold because the north pole is facing away from the moon.  Lunar eclipses don't happen every month because the moon doesn't orbit on the same axis as the earth.

We have day and night because the earths rotation causes one side of the earth to be dark, creating night.

A solstice is when either of the two times a year when the sun is at its greatest distance from the celestial equator.  A equinox is the time when the sun crosses the plane of the earth's equator, making night and day of approximately equal length all over the earth.  #eclipses

Who was Alfred Wegener?  He was a German polar researcher, geophysicist and meteorologist and he developed the first theory of continental drift and formulated the idea that a supercontinent known as Pangaea existed on the Earth millions of years ago.  A divergent boundary occurs when two tectonic plates move away from each other.  When two plates come together, it is known as a convergent boundary.  Two plates sliding past each other forms a transform plate boundary.

The Juan de Fuca plate is just off the coast of Washington.  This plate creates volcanoes in the Cascades near the Pacific ocean by the Juan de Fuca plate conveging with another plate.  Plates at our planet's surface move because of the intense heat in the Earth's core that causes molten rock in the mantle layer to move. It moves in a pattern called a convection cell that forms when warm material rises, cools, and eventually sink down.  A rift zone is a feature of some volcanoes, especially shield volcanoes, in which a linear series of fissures in the volcanic edifice allows lava to be erupted from the volcano's flank instead of from its summit.  A subduction zone is a A subduction zone is the biggest smash-up on Earth, marking the collision between two of the planet's tectonic plates, the pieces of crust that slowly move across the surface over millions of years. When two tectonic plates meet, one may slide underneath the other, curving down into the mantle.  The "channeled scabland" was created where the Ice Age floods accelerated across the tilted surface of the Palouse slope, causing massive erosion. Much of the eroded sediment was carried all the way to the Pacific Ocean.  #platetectonics