The Angle of the Sun's Rays
Young scholars study elevation of the Sun above the horizon and the angle of the rays and their heating power.
3 Views 0 Downloads
May The Earth Be Revolving Around The Sun?
Students trace the beginning of the heliocentric theory of the solar system--the idea that the solar system revolves around the Sun--to an observation by the Greek astronomer Aristarchus, which convinced him that the Sun was much bigger...
9th - 12th English Language Arts