Summer officially kicks off tomorrow with the summer solstice marking the longest day of the year, at least in the Northern Hemisphere. Sol + stice derives from a combination of Latin words meaning “sun” + “to stand still.” As the days lengthen, the sun rises higher and higher until it seems to stand still in the sky. Though the actual length of the 24-hour day doesn’t change, daylight will last a fraction of a second longer on June 20 than on June 19 or 21. From here on out, the days will get just a bit shorter each day until the winter solstice in December.
Make a Sun Dial to welcome summer. Many years ago people had to use the sun to tell him. Learn how people told time before the invention of watches and clocks by making a sun clock.
The National Wildlife Federation has the complete instructions for this project.
What you need:
· paper plate
· plastic straw
· sharpened pencil