• The path an object takes as it travels around another object.
orbit
• A body that has the shape of a ball or globe.
sphere
• In the process of getting larger.
waxing
• In the process of getting smaller.
waning
• A temporary state of being.
phase
• To move around another object in a circular way.
revolve
• A real or imaginary line through the center of a spinning object.
axis
• The full sequence of the Moon’s phases.
lunar cycle
• A period of time when the Moon moves into Earth’s shadow.
lunar eclipse
• The imaginary line that divides Earth into the northern and southern hemispheres.
equator
The moon revolves around the Earth.
It takes the moon about 4 weeks to orbit Earth.
Moon’s Phases
The lunar cycle takes 4 weeks.
Lunar Eclipse
When the Earth’s shadow falls on the Moon it is called a lunar eclipse.
Seasons
Seasons on Earth are caused by Earth’s revolution around the Sun and Earth’s tilt as it makes its orbit.