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The Earth behaves like a giant bar magnet and as such there is a magnetic field present around it. The Earth’s magnetic field is thought to be caused by flowing liquid metals in the outer core of the planet which causes electric currents and a magnetic field.

Introduction to passive and active transport

Three activities which illustrate the law of exponents.

This is a simple video which describes how indices problems are solved using simplified laws.

Osmosis is the movement of water across a semi-permeable membrane from an area of low solute concentration to an area of high solute concentration. Osmosis helps regulate the flow of water in and out of cells, which is crucial to their function.

Online problems where the student is required to simplify the expression using the product property of exponents.

An activity explaining the properties of exponents.