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A metal has free electrons, so when it is heated these electrons gain kinetic energy, meaning they move faster. As a result, these free electrons will collide with other electrons or ions, transferring energ...

x 2 +x-6=y Is the equation we will use to demonstrate how to factorise quadratics. The first step involves using the basic shape of all quadratic factorisation: ax 2 +bx+c=y x 2 +x-6=y (Cx+A)(Dx+B)=y We must...

First, we need to understand what an indirect statement is, and the best way to do that is to work in English for the moment. The opposite of an indirect statement is a 'direct statement'. An example might b...

Similarities : Both have a nucleus Both have cytoplasm Both have a cell membrane Both contain mitochondria Both contain ribosomes Differences : Plant cells have a cellulose cell wall Plant cells have a vacuo...

An atom has the same number of protons and electrons so an atom has no overall electric charge. If an atom loses or gains electrons it becomes an ion. An ion is either positive or negative because it has an ...