Conservation Of Energy - GCSE Chemistry Definition

Reviewed by: Philippa Platt

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The Conservation of Energy is a principle in science that states energy cannot be created or destroyed; it can only be transferred or changed from one form to another. For example, when you switch on a light bulb, the electrical energy is turned into light and heat energy.

Even though it might seem like energy is disappearing, it's just being converted into different types. This concept is important in chemistry because it helps us understand how energy changes occur during chemical reactions.

Overall, the total amount of energy in a closed system always remains the same, it's just the form that changes.

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Philippa Platt

Reviewer: Philippa Platt

Expertise: Chemistry Content Creator

Philippa has worked as a GCSE and A level chemistry teacher and tutor for over thirteen years. She studied chemistry and sport science at Loughborough University graduating in 2007 having also completed her PGCE in science. Throughout her time as a teacher she was incharge of a boarding house for five years and coached many teams in a variety of sports. When not producing resources with the chemistry team, Philippa enjoys being active outside with her young family and is a very keen gardener

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