Chapter 20.2 The Sun: Our Very Own Star. Structure of the Sun The sun is basically a large ball of gas –M–Made mostly of Hydrogen and Helium –H–Held together.
Astronomy Unit Review 1. Read the question 2. Write your answer on the white board 3. Write ONLY the answer.
ONE MILLION STUDENTS Lesson 2: Solar Energy Explained.
Energy From the Atom. Or… Energy From the Atom Energy from the Atom Energy can be produced from either splitting atoms or combining them. Splitting atoms.
1 The Sun - Our Star Sun’s diameter 100 times the Earth’s Sun’s mass is 700 times the mass of all the planets put together The energy source of the Sun.
Nuclear Fission & Fusion. History: Hahn & Strassman (1939) Bombarded Uranium-235 samples with neutrons expecting the Uranium-235 to capture neutrons Instead,
Alternative Energy Project. Biomass Biomass energy is organic matter that can be burned or decomposed to be used a source of energy.
B Objective: SWBAT explain transfer of energy Warm Up: 1.List different forms of energy 2.How do you think one form of energy changes into another form?
Astronomy 1 – Winter 2011 Lecture 15; February 9 2011.
Chapter Eleven Nuclear Chemistry Fundamentals of General, Organic and Biological Chemistry 6th Edition James E Mayhugh Copyright © 2010 Pearson Education,
Main Sequence Lifetimes Time on Main Sequence –How much fuel it has (Core H) –How fast it consumes the fuel (Luminosity)
RTW What did you do over the weekend? *Get your poster & iPad and be ready to present. Agenda: 02/25/13 1.Medical Biotechnology Presentations.