sun & solar system

• sun - hot glowing ball,4.5byo providing energy that sustains life on earth
• solar wind - high energy particles sent to space, caus light display aurora borealis
• prominences - storms look like huge arches,last several days
• solar flares - intense than prominences; last abt 15 mins
• sunspots - cook back storm areas
• identify the layers of the sun

  A) core

  B) radiation zone

  C) convection zone

  D) photosphere

  E) chromosphere

  F) corona

  
• mercury - smallest p& closest planet to sun,no atmospere
• venus - has a core of molten iron, hottest planet in the solar system, rotates the slowest among the planets
• Earth- the only planet in the universe known to harbor life
• Mars - the Red Planet, covered with iron-rich dust
• Jupiter - biggest planet, has the Great Red Spot
• Saturn - has prominent rings
• Uranus - ice giant, orbits on its side unlike other planets
• Neptune - the windiest planet
• Milky Way - the galaxy that includes our solar system
• Comets - "dirty snowballs"; with tails of dust and gases, forced from the head by solar radiation; tail always points away from the sun
• Meteor - a meteoroid as it burns up in the atmosphere; "shooting star"
• Meteorite - a meteoroid that does not completely burn up
• Moon - Earth's only natural satellite
• Black Holes - collapsed stars that resulted to huge gravitational forces where even light cannot escape
• Quasars - massive, remote celestial objects emitting remarkably large amounts of energy
• asteroid belt - found between mars and jupiter
• KINDS OF TIDES

  Spring tides - strongest tides; when the sun, Earth, and moon are on the straight line; the sun's and the moon's gravities add up
• KINDS OF TIDES

  Neap tides - weakest tides; when the sun, Earth, and moon form a right angle; the sun's and the moon's gravities cancel out one another.
• layers of earth

  A) LITHOSPHERE

  B) athenosphere

  C) outer core

  D) inner core