As Earth Day Approaches
Daylight
Report your photoperiod on the 20th of every month, and on each equinox and solstice. Track changes in daylight over the course of the year on the daylight map. Explore how day length changes in your part of the world as the Earth revolves around the Sun.
Signs of Spring
A splash of yellow here. A fleeting blur of blues and reds over there. Signs of spring are appearing everywhere across North America. What is your sign of spring?
From Prospect Heights, IL: Peggy reported, "Snow is gone, but daffodils survive!!! (04/18/2020)
From Cape May Point, NJ: John noted, "Flickers are starting to show up at my suet cages. (04/17/2020)
From Beaufort, NC: Carolyn observed "this indigo bunting arrived on the 15th of April and spent the day eating at our feeders." (04/15/2020)
Report your Day Length (Photoperiod) and Your Sign of Spring
- Step 1: Look up your sunrise/sunset for April 20 using Google or other internet search engines.
- Step 2: Calculate the length of time between sunrise and sunset.
- Step 3: Report your day length for April 20.
- Step 4: Explore the sunlight map.
- Step 5: Share and compare seasonal observations with people across North America.