There are some fantastic resources through state historical societies and
iCivics (this is more games & teaching resources about the structure & function of government; extremely useful for anyone who's interested in civics overall)
The New-York Historical Society has been offering daily "
History at Home" programs dealing with US history, some are general looks while others are New York-specific. I like their "
Women and the American Story" curriculum and have pulled from it frequently for badges that DD's Girl Scout troop have earned this year.
The Museum of the American Revolution also has great
kids and family resources, which will complement things you see in
Liberty's Kids.
Both the New-York Historical Society and Museum of the American Revolution have sample questions from the US Citizenship Test, some of which I've pulled into
a Kahoot! that I used with my Girl Scouts while we were meeting remotely. (There are plenty of other interactives available, and you can get
the full question list online at USCIS if you're really curious.)