Here are some resources for you to be more informed about the solar eclipse that will happen on August 21, 2017.
Videos:
https://ed.ted.com/lessons/what-creates-a-total-solar-eclipse-andy-cohen
https://www.youtube.com/watch?v=Rzb3M8e1AUI
https://www.youtube.com/watch?v=is8OLhGgLAE&feature=youtu.be
https://www.youtube.com/watch?v=_201ttTSG30&feature=youtu.be
Websites:
https://www.space.com/37584-space-racers-solar-eclipse-website-for-kids.html
http://www.ducksters.com/science/physics/lunar_and_solar_eclipses.php
http://space-kids.org/solar-eclipses/
https://www.nasa.gov/audience/forstudents/5-8/features/nasa-knows/what-is-an-eclipse-58