1. SUN • 75% hydrogen and 25% helium by mass • Sun converts hydrogen to helium in its core • Differential rotation – equator the surface rotates once every 25.4 days…
1. 2. 3. Basic Information TheSunis thestarat the center of theSolar System . The Sun has a diameter of about 1,392,000 kilometres (865,000 mi) (about 109Earths ),…
1. Chapter 1: Introduction toEarthMcKnight’s Physical Geography:A Landscape Appreciation,Tenth Edition, Hess 2. Introduction to Earth• Geography as a Field of Learning•…
1. SOLAR SYSTEM• The Sun• Nine Planets• Sixty-one satellites of the planets • Many Comets and asteroids11/15/99Norm Herr (sample file) 2. SUN• 75% hydrogen and…
1. Ancient astronomers didn’t really know what Venus was. They knew it was an object that moved in the sky from night to night, sometimes being obscured by the glare of…
LEARN ENGLISH FOR SCIENCE Dr.Shadia Y. Banjar OUR NEIGHBOURS IN SPACE Dr.Shadia Y. Banjar WORD STUDY: Attracted by: pulled towards. Artificial: man made. Certain metals are…
100 Important Scientific Reasons 100 Important Scientific Reasons 1) The Earth bulges out at equator. Why? Ans: This is due to the shape of the earth. The earth is not a…
100 Important Scientific Reasons Everyday Science Note: The CSS Point is not responsible for any fact/information mentioned in this booklet. This is a complied work. All…
1. By Prof. Liwayway Memije-Cruz 2. Earth is the third planet from the sun and is the largest of the terrestrial planets. 3. Terrestrial Planets MERCURY VENUS EARTH MARS…