Today's Class

Aim -We will discuss the size and shape of the Earth by focusing on ways to determine the shape and then a procedure for finding the circumference of the Earth

 Std 1 Analysis, Inquiry & design

 Circumference at the equator is about 40,000 km
    At the poles-  closer to 40,000km

 Earth is Oblete Sphere

Circumference was first measured back in Ancient Egypt
 by measureing degrees and using proportion


801 HW-    Lab  & Poster Project proving how we know that the Earth is round due on Tuesday.  Bring in Compass and protractor