Glossary of Terms - M

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Magnet: A device that attracts iron or steel.

Megawatt: A unit of measurement for electricity. One megawatt is equal to one thousand kilowatts or one million watts. One megawatt is enough energy to power 1,000 average homes.

Mercaptan: A chemical added to natural gas that makes it smell like rotten eggs so people will know if natural gas is leaking.

Meter: A device showing the amount of electricity being used.

Methane: A hydrocarbon gas that is the main ingredient in natural gas. Methane molecules each contain one carbon atom and four hydrogen atoms.

Molecule: The smallest part of a substance that has all of the chemical properties of that substance.

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