王羲之与王献之.pdf.pdf

Earth ’s Rotation Earth Earth ’’s Rotation s Rotation ?The spinning of the Earth on it ’s axis is called rotation ?The Earth rotates once every 24 hours ??The spinning of the The spinning of the Earth on it Earth on it ’’s axis s axis is called rotation is called rotation ??The Earth rotates The Earth rotates once every 24 hours once every 24 hours Earth Earth Sun degree angle of tilt Earth Earth ’’ s Revolution s Revolution ? The Earth revolves around the Sun ? It takes days for the Earth to go around the Sun ?? The Earth revolves The Earth revolves around the Sun around the Sun ?? It takes It takes days for days for the Earth to go around the Earth to go around the Sun the Sun Earth Earth ’’s Revolution s Revolution ?The path the Earth takes around the Sun is called it ’s ORBIT ??The path the Earth The path the Earth takes around the Sun is takes around the Sun is called it called it ’’s s ORBIT ORBIT How fast are we going? How fast are we going? ??The Earth rotates on its The Earth rotates on its axis about axis about 900 900 miles per miles per hour hour ??The earth revolves around The earth revolves around the sun at about the sun at about 67,000 67,000 miles per hour miles per hour Seasons on Earth Seasons on Earth ?Seasons depend on which part of the Earth is tilting toward the Sun ??Seasons depend on Seasons depend on which part of the which part of the Earth is tilting Earth is tilting toward the Sun toward the Sun The Moon The Moon ?The Moon does not glow, it reflects light from the Sun ?It goes through a 29 day cycle ??The Moon does not The Moon does not glow, it reflects glow, it reflects light from the Sun light from the Sun ??It goes through a 29 It goes through a 29 day cycle day cycle Phases of the Moon Phases of the Moon New Moon Waning Crescent Waxing Crescent Waxing Gibbous Full Moon Waning Gibbous First Quarter Third Quarter Movements of the moon Mov