Rotation and Revolution
Solar System A group of objects in space that move around a central star
Rotation The spinning of a planet on its axis The Earth’s rotation takes about 24 hours or one day Axis
Axis An imaginary line that runs through both poles of a planet
Rotation Rotation causes the day and night cycle on Earth Night Day Light From The Sun
Rotation Rotation also causes the Sun and the stars to appear to move across the sky Day Night
This object just completed a revolution The action of one object moving around another in an orbital path This object just completed a revolution
Orbit The path an object takes as it revolves around a second object
Revolution The Earth’s revolution takes about one year, or 365 days
Example - Revolution The Earth revolves around the Sun Earth Sun
Example - Revolution The Moon revolves around the Earth Moon Earth