https://bensguide.gpo.gov/
https://www.brainpop.com/socialstudies/usgovernment/branchesofgovernment/
https://www.senate.mn/publications/kidsguide.pdf
https://www.leg.mn.gov/youth/
https://www.usa.gov/branches-of-government
https://kids.nationalgeographic.com/history/article/three-branches-of-government