Question 15
Government Basic
There are three branches of government. Why?

America’s government is split into three branches (legislative, executive, and judicial) to share power, preventing one part from becoming too powerful and taking over the others. Checks and balances mean that the branches limit each other, and the separation of powers principle assigns different roles to each branch. 

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Name one power of the U.S. Congress. 
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Government Basic
The U.S. Constitution starts with the words “We the People.” What does “We the People” mean?
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Government Basic
What is the form of government of the United States?
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Section "Learn and Explore" uses official instructions and media files of US Citizenship and Immigration Services, US National Museum of American History, The Smithsonian Institution and other governmental and public organization.