The solar system notes-1.pdf

The Earth in Space The Earth in Space Astronomy Astronomy The study of the moon, stars and other The study of the moon, stars and other space and explain the cause of the seasons space and explain the cause of the seasons SWBAT- Demonstrate how Earth moves in SWBAT- Demonstrate how Earth moves in objects in space objects in space on Earth on Earth Rotation: the Earth spinning on its axis one time – a 24 hour, day and night cycle ½ degrees – Earth’s axis is tilted at 23 through the North and South Pole Earth Earth’s Rotation ’s Rotation Axis –  imaginary line passing another in space. One revolution of the Earth around the Sun requires 365 ¼ days…. 1 year. Revolution: The movement of one object orbiting around Earth Earth’s Revolution ’s Revolution Perigee - that point in the Earth elliptical orbit where the Earth & Sun are closest together Apogee Apogee (Aphelion) & (Aphelion) & Perigee Perigee (Perihelion) (Perihelion) Earth Earth’s Revolution ’s Revolution Apogee – that point in the Earth elliptical orbit where the Earth & Sun are farthest apart moon and Earth in orbit. moon and Earth in orbit. SWBAT- Describe two factors that keep the SWBAT- Describe two factors that keep the 4/27/15 4/27/15 Why do Seasons Occur? Why do Seasons Occur?  Seasons occur because of the Axis tilt of the Earth.  North pole pointed toward the sun results in more direct sun light hitting the northern hemisphere…. Summer in the northern hemisphere, winter in the Southern hemisphere. Summ