Vernal Equinox 2024 For Kids. As the marker of a new season, the first day of spring (spring or vernal equinox) provides a great opportunity to learn about the natural world with your kids. How many equinoxes occur every year?

In other words, on the day of the vernal equinox, day is almost equal to night, while the length of daylight continues to grow. Equinoxes are the moments when the sun is nearly above the equator twice a year as the earth orbits the sun.