Chapter+15

Welcome to chapter 15! There is a discussion board at the bottom of the page. Please leave any questions you may have about the chapter, homework, or questions you are struggling with. If you're having trouble accessing the discussion board, please send me an email!

**CHAPTER VOCABULARY** You can participate online by providing explanations for vocabulary **in your own words**. You can give examples if it helps your explanation of words. You can do one or five or ten and you can add on to posts that have already been made if you would like to improve an explanation. Don't forget to leave your name beside text that you write. Any plagiarized entries will be deleted.

inertia antimatter free fall low Earth orbit escape velocity thrust

geosynchronous- Imagine a satellite that orbits the earth, completing one orbit in one day(the time taken for the earth to complete one rotation). Than the satellite would look like it is stuck or not moving when it is actually moving with earth. (Sarellite looks like fixed in the space on the surface of the Earth). (Andrew Park)

terraforming - **Terraforming** is chaning a different plant's atmosphere so human can live on that plant. If it was for Mars we would change the atmosphere of Mars creaitn soil, oxygen and other enviornment supporting human life. (Andrew Park)

extrasolar planets

radial velocity method

photometric transit method

Drake equation

**CHAPTER CONTENT ** **Chapter 15 Powerpoint Slides (15.1-15.4)**   **15.5 **