What is the biggest difference between the Senate and the House of Representatives?

The biggest difference between the Senate and the House of Representatives lies in the length of the terms served by their members. Senators serve for six-year terms, while members of the House serve two-year terms. This structural difference impacts how each chamber functions and approaches legislation, with the Senate often seen as a more stable body. The longer terms in the Senate may allow for more extensive debate and consideration of issues, as senators are less frequently up for re-election compared to House members who must regularly campaign for their seats.

Additionally, while the House does have the power to impeach officials, this emphasizes its role in initiating impeachment processes rather than a defining difference when compared to the Senate's unique position in conducting impeachment trials. The ability of the Senate to establish federal courts and its larger size are not directly synonymous with the fundamental operational differences established through their terms. Hence, the correct answer highlights the significance of the term length as a crucial distinguishing feature of the two legislative bodies.