Consider slavery as a legal system, and how it relates to the U.S. Constitution

Consider slavery as a legal system, and how it relates to the U.S. Constitution (1789). Also, consider why and how slavery clauses/rules/regulations ended up in the U.S. Constitution. 

In essay format (a fully developed paragraph per answer with resource  details/support):

1. In your own words, explain all three of the slavery clauses/rules/regulations stated in the U.S. Constitution (article I:sect.2#1;article I,sect.9,#1;article IV,sect.2,#3).

2. How was the 3/5 clause (Article I: Section 2, #1) a compromise between southern “slave labor" states and northern “free-labor” states? 

3. How was forbidding congress from passing any law that would end importing enslaved persons prior to 1808, a compromise between southern “slave labor" states and northern “free-labor” states?

4. Was the "fugitive slave" regulation a compromise between the south  and north?

 
5. Why do you think the U.S. Constitution does not mention the words “slave” or “Blacks” even when obviously making these 3 references to the enslaved population? 

6. What is your new understanding of enslavement in the U.S. as a LEGAL system?

 
7. After engaging the relevant resources, what are you left wondering about; what specifically in the resource spurred/caused your wonderment? (Mandatory!)

Links:

http://constitutionus.com/

https://en.wikipedia.org/wiki/Slave_states_and_free_states#/media/File:US_Slave_Free_1789-1861.gif