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.
Click the link below to learn about the Peloponnesian War. Peloponnesian War. After the War: 1  All Greek city-states were weakened by the war. 2  Many casualties. 3  Farms were destroyed. 4  The war made it difficult for the Greeks to trust each other and made future unification nearly impossible.