To walk on the moon's surface, the astronauts needed to wear a space suit with a back mounted, portable life support system. This controlled the oxygen, temperature and pressure inside the suit.
On the surface, the astronauts had to get used to the reduced gravity. They could jump very high compared to on Earth.
The crew spend a total of two and a half hours on the moon's surface. While on the moon's surface, the performed a variety of experiments and collected soil and rock samples to return to Earth.
Walking on the Moon
An American flag was left on the moon's surface as a reminder of the accomplishment.