1.Scientists believethat our galaxy is abarred spiral galaxy A barred spiral galaxy is a rotating, flat disk of stars, gas and dust with a bar-shaped center made of stars.2.…

1.APS Green Choice Programs Ways to save electricity and reduce your billEnergy Efficiency, Renewables, andGreen Building in Housing Programs September 16, 2008Rex Stepp…

1. the solar system Pile 4rt Curs 2013-14 2. shadow 3. star 4. sunbeams 5. earth 6. planets 7. Moon Moon Landing Enjoy this original footage of the NASA Apollo 11 moon landing…

Fuel is any material that stores energy that can later be extracted to perform mechanical work in a controlled manner. Most fuels used to convert current into energy include…

1. Chapter 21- Stars Why will (or won’t) our sun become a black hole? 2.   3. I. Formation of starsA. Stars form in cold, dark clouds of gas and dust ( nebulae ), covering…

Slide 1The Sun 6.E.1.2 Explain why Earth sustains life while other planets do not based on their properties (including types of surface, atmosphere and gravitational force)…

Slide 1 Slide 2 Chapter Introduction 1.An object sitting on a high shelf has no energy. 2.There are many forms of energy. Do you agree or disagree? Slide 3 Lesson 1 Reading…

Slide 1 Changes of State Matter mostly exists is one of three states or phases: solid, liquid or gas. An increase or decrease in energy (temperature) can lead to a change…

Slide 1 Chapter 10 Our Star Slide 2 Explanation: Plumes of hot gas shoot across the surface on even an average day on the Sun. Such volatile activity was captured in dramatic…

Slide 1 Unit 1 Lesson 1 Structure of the Universe Copyright © Houghton Mifflin Harcourt Publishing Company Slide 2 Our Place in Space Copyright © Houghton Mifflin Harcourt…