English National Curriculum - Science Science

5. Compare the power ratings of appliances

Mission Objectives

Explain the differences between power and energy

Calculate the energy consumed by different household items

Understand the importance of choosing energy-efficient appliances to reduce energy consumption and greenhouse gas emissions

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Rocket Words Quiz

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Keywords

Words and meanings to learn

power

the rate of energy transfer

energy

the essence required to do anything, measured in Joules (J)

appliance

a device or piece of equipment designed to perform a specific task

Watt

a unit of power; it is defined as one joule per one second

efficient

performing a function with the least waste of time and energy

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This lesson has been written by

Kate Richards

Kate’s journey as a science educator spans over 15 enriching years. Her passion for unravelling the complexities of the human body led her away from medicine (as she hates blood but loves medical t-shows) and into the world of teaching. She’s had the privilege of nurturing young minds in KS3 and KS4 science, guiding A-level Biology students, and even taught year 4 students in Spain, broadening her teaching horizons early in her career. Kate holds a Masters in Teaching (MTeach) and specialises in biology. Her research for her Master's degree focused on the profound impact of self-efficacy on classroom learning. Beyond the classroom, she finds solace in leisurely family walks and exploring new destinations through travel. She finds that the most rewarding aspect of teaching is witnessing those magical "light bulb moments" when students grasp the intricacies of science right before her eyes. 

Required Resources

Resources: Household appliances.

Handout: An investigation sheet for the students to complete.

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