Waxing def=First Quarter Moon — During this phase of the Moon fifty percent of it is illuminated and visible from the Earth. It occurs after the Crescent phase and before the Waxing Gibbous phase. Full Moon — During this phase of the Moon it is entirely illuminated and visible from the Earth.waning def=In the northern hemisphere, if the left side of the Moon is dark then the light part is growing, and the Moon is referred to as waxing(moving toward a full moon). If the right side of the Moon is dark then the light part is shrinking, and the Moon is referred to aswaning (past full and moving toward a newmoon).gibbous def=having the observable illuminated part greater than a semicircle and less than a circle.crescent def=the curved sickle shape of the waxing or waning moon.A waxing moon is when its a gourter the waning is when its 3/4ths covered upthe luner cycle is 29.53059 days and its a period of 19 years (235 lunar months), after which the new and full moons return to the same days of the year. It was the basis of the ancient Greek calendar and is still used for calculating movable feasts such as Easter.

#Rockinreview  BY: Cole fox

By: Cole fox

Nicolai Copernicus (1473-1543) radically changed our understanding of astronomy when he proposed that the sun, not Earth, was the center of the solar system. This led to our modern understanding of the relationship between the sun and Earth.

We now know that Earth orbits the sun elliptically and, at the same time, spins on an axis that is tilted relative to its plane of orbit. This means that different hemispheres are exposed to different amounts of sunlight throughout the year. Because the sun is our source of light, energy and heat, the changing intensity and concentration of its rays give rise to the seasons of winter, spring, summer and fall.

The ability to predict the seasons — by tracking the rising and setting points of the sun throughout the year — was key to survival in ancient times. The Babylonians, the Maya and other cultures developed complex systems for monitoring seasonal shifts. But it took centuries more to unravel the science behind the seasons.

The sun isnt hotter in the winter because we are tilted away from the sun in the winter when its summer were tilted torwards the sun.

The eclipse is different than the moon phases because the sun doesnt move we move around it an the moon moves around us so that means the moon will eventaully hit the sunn and block it.

We have day and night because we revolve around the sun and the moon revolves around earth.

The definition equinox: of the time when the sun crosses the plane of theearth's equator, making night and day ofapproximately equal length all over the earth andoccurring about March 21 (vernal equinox orspring equinox) and September 22 (autumnal equinox)

The definition solstice: either of the two times a year when the sun isat its greatest distance from the celestialequator: about June 21, when the sun reachesits northernmost point on the celestial sphere,or about December 22, when it reaches itssouthernmost point.


Plate tectonics

Alfred Wegener was a scientist who proposed the continental drift theory in the early twentieth century.

Convergent: Characterized by convergence, to come together.

Divergent: Pertaining or causing divergence.

Transform Boundary: Is where two of the floats - two tectonic plates - side alongside each other.

*The plate of Juan of de fuca.

The convergent plates affect the cascades by the plates impact each other and then the land starts to make a rugged mountain range.

Its the transfer of heat affects the plates when moving.

Rift zone: Narrow structural depressions between parallel faults.

Subduction zones: An act or a distance of subducting.

The 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.  

Comment Stream

2 years ago

Where is the #platetectonics

2 years ago