[SCIENCE] Q4 - Sun, Moon, Eclipse, Earth, Atmosphere,

• The sun's temperature is 15 million degrees celsius
• The sun is in it's main sequence estimated at 4.5 billion years old
• The sun is mostly composed of Hydrogen and Helium
• The photosphere is the glowing layer of gasses on the sun's surface
• The chromosphere is found above the photosphere
• the core is the inermost layer of the sun
• the passage way for all energy being released from the core is called the radiative zone
• Sunspots are the dark spots that are found on the sun's surface
• Solar Prominences look like loops on the sun's surface
• the sun's diameter is 1,400,00 km
• the earth is 4x the moon
• The moon rotates as the same rate as the earth
• it takes the moon 27 earth days to complete one orbit around the earth
• the moon's surface is a rocky surface due to impact of astroids, meteorites, and comets
• Lunar Regolith is the gray powdery dust found on the moon's surface
• Highlands are the light areas of the moon
• Maria are the dark spots on the moon
• Crust is the outermost layer of the moon
• Mantle is divided into 2: Rigid Litosphere and Athenosphere
• Core is the iinnermost layer of the moon and is surrounded by liquid iron
• Troposphere is the lowest layer of the atmosphere, 10-50km above the Earth's surface
• Stratosphere is the second layer which contains the ozone layer
• The Mesosphere is the third layer, it is the coldest layer which causes meteors to burn here
• The thermosphere holds the ionsphere
• The Exosphere is thee outermost layer and contains hydrogen and helium gasses
• The atmosphere is important because it filters solar radiations
• The Earth is approx. 4.5 billion years old
• The solid outer core of Earth is made of iron and nickel.
• The Earth's inner core is a solid ball of iron
• Glutenburg discontinuity is between the mantle and crust
• The Mohorovic discontinuity is between mantle and core
• the crust is the outermost layer and is 1% of the earth's mass
• Continental crust can be described as old and thick
• Oceanic crust can be described as young and dense
• The rotation of the earth takes 24 hours to complete
• The movement around the sun and takes 1 year to complete is called a revolution.
• Equinox refers to a day with the equal day and night
• the Tropic of Capricorn can be found at 23 1/2 S
• The Tropic of cancer can be found at 23 1/2 N
• The Artic circle can be found at 66 1/2 N