The Earth is in constant motion. As shown in the figure, the northern end Earth’s axis points toward the north star. Thus, Earth spins about it’s axis toward the east. Spinning about an axis is called rotation. The Earth rotates once every 24 hours. It is this motion that causes daylight and nighttime. Calculate the […]
Earth Circles the Sun
Hi, The diagram Earth’s revolution around the Sun shown below represents Texas’ 8th Grade Science Standard: Model and illustrate how the tilted Earth rotates on its axis, causing day and night, and revolves around the Sun causing changes in seasons. The dates for 2014 and 2015 seasons in the Northern Hemisphere are correct, thus students […]