I bet I've heard this question fifty times the past two weeks. Finally after hearing it five or more times in the office yesterday, I called a staff meeting.

"OK, we're going to learn why Easter may be at anytime from March to possibly May, OK?"

"It's simple, just remember that it falls on the first Sunday after the first full moon after the vernal equinox, I'll explain".

An equinox, literally "equal night" from Latin aequinoctium,   occurs twice a year when the Sun crosses the equator and day   and night are equal in length - Spring and Autumn. The   vernal equinox, marking the beginning of Spring in the   Northern Hemisphere, occurs about March 21,

When the Sun   moves north across the celestial equator. The autumnal   equinox falls about September 23, as the Sun crosses the   celestial equator going south.  Got that? Great, any questions? Now lets get down to what we need to learn so little ones after church Sunday will have some fun.

  FOR COLORING EASTER EGGS:

The McCormick's Seasonings website

Add 1 teaspoon white vinegar and 20 drops of desired color to 1/2 cup boiling water.
Dip hard-cooked eggs about 5 minutes or longer.
Remove to wire rack to cool.
After color dries it will not rub off.

Recipe for more interesting color mixes (by drops):

Lime:
24 yellow, 4 green 

Purple:
15 blue, 5 red

Cantaloupe:
24 yellow, 2 red

Plum:
10 red, 4 blue

Teal:
15 green, 5 blue

Raspberry:
14 red, 6 blue

Spearmint:
12 green, 6 yellow, 2 blue

Watermelon:
25 red, 2 blue

Maize:
24 yellow, 1 red 

Grape:
17 blue, 4 red

Orange Sunset:
17 yellow, 3 red

Jungle Green:
14 green, 6 yellow

Fuchsia:
18 red, 2 blue