Biology Lab Safety Rules. Biology lab safety rules are guidelines designed to help keep you safe when experimenting. Some equipment and chemicals in a biology laboratory can cause serious harm. It is always wise to follow all lab safety rules. Don't forget, the most helpful safety rule is to use plain old common sense.
In 1937 statehood for Hawaii was proposed and refused by the U.S. Congressâthe territory's mixed population and distance from the U.S. mainland were among the obstacles. On Dec. 7, 1941, Japanese aircraft made a surprise attack on Pearl Harbor, plunging the United States into World War II.
The Japanese had hoped to break the Americans by attacking Pearl Harbor, instead they united them. The next day, December 8th, 1941, the US declared war on Japan. Three days later Japan's allies, Germany and Italy, declared war on the United States. The United States was now a major part of World War II.apanese airplanes made a surprise attack on the US Navy in Pearl Harbor. They destroyed many ships and killed many soldiers. It was this attack that forced the United States to enter World War II.