They contained just enough iron to counterbalance the pull of gravity.

Steel contained iron, which was poison to his kind.

Containing 11 percent less iron than the Sun, recent age estimates indicated that the star is about 7 billion years old.

Animals such as humans and other mammals have red blood because it contains iron.

The women were given a solution containing radioactive iron.

I have been conducting an experiment to see if fruit juices contain iron.

The stone also contains iron, which gives it a red colour.

Although the rock contains iron, the levels are low and little attempt was made to extract it.

Those calves still had white meat because they did not get any feed containing iron.

Some Meteorites contain iron in the form of rare minerals.