Day and Night The Earth The Earth rotates

Day and Night

The Earth • The Earth rotates around the sun on an axis • It takes 24 hours to make one rotation

Rotation • When the Earth rotate on its axis, it causes day and night.

Watch About Night and Day • Tutorial: • http: //studyjams. scholastic. com/studyjams/science/solar-system/day-onearth. htm

Rotates and Revolves • The Earth rotates on its axis • This causes ______ and ____. • The Earth also revolves around the sun • Watch it: http: //www. artescapesonline. com/movies/ Module%20 IV_V 15. swf

Revolves • The Earth rotates on its axis and at the same time revolves around the sun. • When the Earth goes around the sun on its axis, is tilts. • This tilt cause the seasons. • https: //www. youtube. com/watch/? v=v. Dg. Um. Tq 4 a 2 Q

How long is one rotation? • This trip takes 365 ¼ days (1 year) • Every four years we have a leap year and add one day to the calendar in February. • When you add up each quarter day you get one whole day (4 quarters = 1 whole)

Revolves vs. Rotates

Summer • When the Northern Hemisphere tilts towards the sun we have summer. • What season does the summer hemisphere have?

Winter • When the axis tilts the Northern Hemisphere away from the sun, we have Winter. • What season is it in the Southern Hemisphere?