Earths DayNight Year Seasons How rotation revolution and

Earth’s Day/Night, Year, & Seasons How rotation, revolution, and tilt cause it all!

© William Wilkinson, Interactive. Science. Teacher. com

The Cause of Earth’s… Day/Night Year Seasons (every 9 cm) Cut lines (top sheet only!) © William Wilkinson, Interactive. Science. Teacher. com

Day/Night The Cause of Earth’s… Rotation © William Wilkinson, Interactive. Science. Teacher. com Year Seasons

Day/Night The Cause of Earth’s… Rotation © William Wilkinson, Interactive. Science. Teacher. com Year Seasons

Day/Night The Cause of Earth’s… Year Rotation is the spinning of a body, in this case Earth, on its axis. (Definition) Earth spins/rotates counterclockwise. (Key Statements) It takes 24 hours for one rotation. The side facing the Sun experiences day, and the side facing away from the Sun experiences night. © William Wilkinson, Interactive. Science. Teacher. com Seasons

Day/Night The Cause of Earth’s… Rotation © William Wilkinson, Interactive. Science. Teacher. com Year Revolution Seasons

Day/Night The Cause of Earth’s… Rotation Year • when one body revolves around • another in space • the Earth rotates while it revolves; • it’s moving about 30, 000 meters • per second; • the path is not a perfect circle © William Wilkinson, Interactive. Science. Teacher. com Seasons (Definition) (Key Statements)

Day/Night The Cause of Earth’s… Rotation Year Revolution Seasons Revolution Tilt NO! © William Wilkinson, Interactive. Science. Teacher. com YES!

Day/Night The Cause of Earth’s… Rotation Year Revolution Seasons • how much the axis “leans” off center; the Earth’s axis is 23. 5° • a season is a pattern of temperature and weather • seasons are caused by how much sunlight is received, and that is caused by the tilt and by Earth’s position around the sun; on an equinox the sun shines equally on the northern and southern hemispheres © William Wilkinson, Interactive. Science. Teacher. com