Visual Dictionary Online

Theme


Powered by ikonet.com

seasons of the yearclick to hear

Periodic climate changes over the course of a year; they are a function of the Earth’s inclination toward the Sun and its rotation around it.
seasons of the year Sun autumnal equinox autumn winter solstice winter summer summer solstice spring vernal equinox

Sun click to hear

Source of the Earth’s heat.

autumnal equinox click to hear

At the equinoxes, day and night are of equal length; the autumnal (fall) equinox is on September 22 or 23 in the Northern Hemisphere.

autumn click to hear

Season between the autumnal equinox and the winter solstice.

winter solstice click to hear

Shortest day of the year; it falls on December 21 or 22 in the Northern Hemisphere.

winter click to hear

Season between the winter solstice and the vernal equinox.

summer click to hear

Season between the summer solstice and the autumnal equinox.

summer solstice click to hear

Longest day of the year; it falls on June 21 or 22 in the Northern Hemisphere.

spring click to hear

Season between the vernal equinox and the summer solstice.

vernal equinox click to hear

At the equinoxes, day and night are of equal length; the vernal (spring) equinox is on March 20 or 21 in the Northern Hemisphere.