EARTH’S MOVEMENT

Rotation &

Revolution

Earth’s Rotation Rotation – earth spins on its axis (counter-clockwise) Axis – Imaginary line through the middle of earth Earth spins or rotates on its axis one time every 24

hours (15° per hour) Evidence – Day & Night

Earth’s Tilted Axis Tilt – to the side, or not straight

Earth’s axis is tilted 23.5° Polaris – Earth’s axis always points to Polaris (The

North Star)

Equator & Hemispheres Hemisphere – half of the earth Earth is divided into 2 hemispheres (Northern and

Southern) by the Equator

Time Zones The world is broken up into 24 time zones

divided by the lines of Longitude

Earth’s Revolution Revolution – earth’s movement around the Sun Earth orbits/revolves (goes around) the Sun one

time every 365 days (1 year). The shape of earth’s orbit is an ellipse

Evidence – Earth’s seasons & movement of the stars