<div id="mobileHeader"><!-- [et_pb_line_break_holder] --><!-- [et_pb_line_break_holder] --><div id="centerHeaderContent"><!-- [et_pb_line_break_holder] --><!-- [et_pb_line_break_holder] --><div id="center_horizontal"><!-- [et_pb_line_break_holder] --><div id="nav_tabs_mobile"><!-- [et_pb_line_break_holder] --><a href="" id="lessonBackMobile" class="navBtns"><img src="https://stem.schooldatebooks.com/wp-content/uploads/2017/07/tab_icons_nav_2-06.png" id="prevIconMobile" class="nav_tab_icon">Previous Lesson</a><!-- [et_pb_line_break_holder] --><a href="" id="lessonNextMobile" class="navBtns">Next Lesson<img src="https://stem.schooldatebooks.com/wp-content/uploads/2017/07/tab_icons_nav_2-07.png" id="nextIconMobile" class="nav_tab_icon"></a><!-- [et_pb_line_break_holder] --><a href="" id="pageBackMobile" class="navBtns">Unit Overview<img src="https://stem.schooldatebooks.com/wp-content/uploads/2017/07/tab_icons_nav_2-08.png" id="pgBackIconMobile" class="nav_tab_icon"></a><!-- [et_pb_line_break_holder] --></div><!-- [et_pb_line_break_holder] --><!-- [et_pb_line_break_holder] --><div id="lessonImgWrapper_mobile" class="topMenuDiv"><img src="https://stem.schooldatebooks.com/wp-content/uploads/2017/06/space-systems-gravity.png" id="alt_lesson_img_mobile" alt="Gravity" /></div><!-- [et_pb_line_break_holder] --><!-- [et_pb_line_break_holder] --></div> <!--end center_horizontal--><!-- [et_pb_line_break_holder] --></div> <!--end centerContent--><!-- [et_pb_line_break_holder] --><!-- [et_pb_line_break_holder] --></div> <!--end mobileHeader-->
<div class="sectionWrapper"><!-- [et_pb_line_break_holder] --><!-- [et_pb_line_break_holder] --><h2>How does the Earth stay in orbit?</h2><!-- [et_pb_line_break_holder] --><p><strong>Gravity interactive visualization: </strong><a href="https://phet.colorado.edu/sims/html/gravity-and-orbits/latest/gravity-and-orbits_en.html" target="_blank" rel="noopener">https://phet.colorado.edu/sims/html/gravity-and-orbits/latest/gravity-and-orbits_en.html</a></p><!-- [et_pb_line_break_holder] --><!-- [et_pb_line_break_holder] --><p><strong>Why do the planets go around the sun? (NASA): </strong><a href="http://spaceplace.nasa.gov/review/dr-marc-solar-system/planet-orbits.html" target="_blank" rel="noopener">http://spaceplace.nasa.gov/review/dr-marc-solar-system/planet-orbits.html</a></p><!-- [et_pb_line_break_holder] --><!-- [et_pb_line_break_holder] --><img src="https://stem.schooldatebooks.com/wp-content/uploads/2017/05/earth-space-gravity_larger-01-300x265.png" alt="" width="300" height="265" class="aligncenter size-medium wp-image-4426" /><!-- [et_pb_line_break_holder] --></div> <!-- end sectionWrapper -->
<div class="sectionWrapper"><!-- [et_pb_line_break_holder] --><!-- [et_pb_line_break_holder] --><h2>What would happen if the planets failed to rotate in a circular motion around the sun? What if the planets continued to rotate but lost their gravitational pull?</h2><!-- [et_pb_line_break_holder] --><img src="https://stem.schooldatebooks.com/wp-content/uploads/2017/05/earth-space-gravity_larger-03-300x300.png" alt="" width="200" height="200" class="aligncenter size-medium wp-image-4428" /><!-- [et_pb_line_break_holder] --><p><strong>How gravity works: </strong><a href="http://www.stufftoblowyourmind.com/videos/51310-stuff-to-blow-your-kids-mind-gravity-video.htm" target="_blank" rel="noopener">http://www.stufftoblowyourmind.com/videos/51310-stuff-to-blow-your-kids-mind-gravity-video.htm</a></p><!-- [et_pb_line_break_holder] --><!-- [et_pb_line_break_holder] --><p><strong>What is microgravity? </strong><a href="https://www.nasa.gov/audience/forstudents/5-8/features/nasa-knows/what-is-microgravity-58.html" target="_blank" rel="noopener">https://www.nasa.gov/audience/forstudents/5-8/features/nasa-knows/what-is-microgravity-58.html</a></p><!-- [et_pb_line_break_holder] --></div> <!-- end sectionWrapper -->
<div class="sectionWrapper"><!-- [et_pb_line_break_holder] --><!-- [et_pb_line_break_holder] --><h2>STEM Career: Aerospace Engineer</h2><!-- [et_pb_line_break_holder] --><p>Aircraft and spacecraft—and the propulsion systems that fuel them—are the domains of aerospace engineers. These engineers formulate mathematical models, analyze them with computers, build prototypes, and plan and conduct environmental, operational, and stress tests.</p><!-- [et_pb_line_break_holder] --><img src="https://stem.schooldatebooks.com/wp-content/uploads/2017/05/earth-space-gravity_larger-02-300x289.png" alt="" width="200" height="193" class="aligncenter size-medium wp-image-4427" /><!-- [et_pb_line_break_holder] --><h3>Tools of the Trade</h3><!-- [et_pb_line_break_holder] --><p>Computational software; aerodynamics techniques</p><!-- [et_pb_line_break_holder] --><h3>Education Required</h3><!-- [et_pb_line_break_holder] --><p>A bachelor's degree in aerospace engineering; advanced degrees often needed</p><!-- [et_pb_line_break_holder] --><!-- [et_pb_line_break_holder] --></div> <!-- end sectionWrapper -->