RotationPerihelion Worksheet PrintWorksheet 1. Which term best describes the point when Earth is closest to the sun? Perihelion Aphelion Ellipse Orbit 2. How long does one revolution take? 365 days 365 1/4 days 365 3/4 days 364 days
ORBIT AND ROTATION The Earth revolves around the sun once every 23.9 hours, and one revolution around the sun takes 365.25 days. Our calendar method, which calculates one year as 365 days, is tested by the extra quarter-day. To maintain our yearly calendars in sync with our rotation around...
55. The moon is not changing its shape, but instead different sections of the moon are lit by the sun, and reflect these different shapes back to Earth. 56. The different shapes we see are called phases of the moon, and are a result of the moon's revolution around Earth, which takes...