A battlefield and a museum

Answer Pennsylvania

The first sentence. Baltimore and Washington, D.C. are named a few lines later as places the roads lead to, and a student who starts writing late puts one of those here.

Answer General George Meade (also accepted: George Meade, Meade)

Two armies and two generals are named in the same sentence, in the order Potomac–Meade, Northern Virginia–Lee. Attach each name to its army as you hear it, because the next question asks for the other pair and there is no second chance.

Answer General Robert E. Lee (also accepted: Robert E. Lee, Lee)

Lee is the name said most often in the recording, which makes it easy — and that is the risk: the easy one is where attention drops. The question asks who led the Confederate army, not who won.

Answer July 1, 1863 (also accepted: July 1 1863, 1 July 1863)

Three dates sit close together: it began on July 1 and ended on July 3, and the cyclorama shows the attack of July 3. The question says "begin", so only the first of them counts.

Answer three days (also accepted: 3 days)

"About 170,000 soldiers fought for three days." The sentence holds two numbers and this question wants the smaller one. A student listening for a big figure writes 170,000 and loses the mark to a number they heard correctly.

Answer more than 1 million (also accepted: 1 million, over 1 million)

The figure is given as "more than 1 million", and the limit of three words lets you keep "more than". Writing the number alone is also accepted — what is not accepted is the list of examples that follows it.

Answer Pickett's Charge (also accepted: Picketts Charge)

The recording says the attack "has come to be called" this — that phrase is the signal that a name is arriving. George Pickett the man is explained immediately afterwards and is not what the question asks for.

Answer the High Water Mark (also accepted: High Water Mark, High-Water Mark)

Another name, and the same signal: "Today, the point is called". Marking ignores capital letters, so the form matters more than the case — three words, exactly as said.

Answer Abraham Lincoln (also accepted: President Abraham Lincoln, Lincoln)

The date is given before the name, so the question hands you the cue and asks for what follows it. This is the usual pattern in short answer: find the fact you already have, then take the next one.

Answer two minutes (also accepted: 2 minutes)

"Lincoln spoke for just two minutes." The word "just" is the recording making a point of how short it was — and a point being made is almost always a fact worth testing.