We do not do your homework for you. Although it might take more effort to do the work on your own, you will profit more from your effort. We will be happy to evaluate your work though. However....
Since this is not my area of expertise, I searched Google under the key words "science big bang theory facts" to get these possible sources:
https://www.google.com/search?client=safari&rls=en&q=science+big+bang+theory+facts&ie=UTF-8&oe=UTF-8&gws_rd=ssl
In the future, you can find the information you desire more quickly, if you use appropriate key words to do your own search. Also see http://hanlib.sou.edu/searchtools/.
http://www.hackcollege.com/blog/2011/11/23/infographic-get-more-out-of-google.html
Don't just copy the material. Express the ideas in your own words. Although this will take more time and effort, you will learn more.
-Explain how and when the universe formed according to the big bang theory?
-Explain how and when our solar system formed?
-Describe one observation astronomers use to show that the universe is Expanding?
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