They carry elements like iron and titanium around the planet ... where they condense and fall as liquid metal rain. The ...

Iron is an element. It is made of only one ... A particle diagram can represent a solid element, a liquid element or a gaseous element. A molecule is made up of 2 or more atoms.

The Earth's interior is composed of four layers, three solid and one liquid ... The iron isn't pure—scientists believe it contains sulfur and nickel, plus smaller amounts of other elements.

Many geoscientists also argue that Mars’ molten center is too hot and consists of lighter elements like ... showed that the ...