Typical Flu Duration. For most people, the flu lasts anywhere from about three days to two weeks. If it lasts much longer than two weeks, you may have developed a secondary infection or one of these common flu complications.
More silver facts. 1  While aluminum is the most common metal found in the Earth's crust, the most common metal found on Earth is iron, mostly because it makes up such a large part of the Earth's core.2  More iron facts. 3  Copper is a good conductor of electricity and is often used for making wires.ore silver facts. 1  While aluminum is the most common metal found in the Earth's crust, the most common metal found on Earth is iron, mostly because it makes up such a large part of the Earth's core.
For a series of statements about the bonding in iron, students decide whether they are true or false. This leads to further thinking and discussion about the bonding in metals. This activity checks on the misconceptions that: 1  the structure of iron is an example of a giant molecule.2  the atoms of iron are held together by ionic bonds. 3  iron conducts electricity because iron atoms move through the solid.4  iron expands when heated because the atoms get bigger.or a series of statements about the bonding in iron, students decide whether they are true or false. This leads to further thinking and discussion about the bonding in metals. This activity checks on the misconceptions that: 1  the structure of iron is an example of a giant molecule.