Page 249 - Science Course 3 (Book 1)

Energy Transformations Mo7-L2a: What is the Law of Conservation
of Energy?
Lesson 2

A microwave oven changes electric energy into
radiant energy.
In this topic, you will learn the following
lessons: Electric energy flows from the electric
outlet through the power cord into
Mo.7–L2a: What is the Law of Conservation of the microwave oven.
Energy?
Mo.7–L2b: What is Friction

Mo7-L2a What is the Law of Conservation of
Energy?
KEY CONCEPTS:
1. What is the law of conservation of energy?

The microwave oven changes electric
Vocabulary A-Z energy into microwave that carry

Let us learn some vocabulary radian energy to the popcorn.

Law of Conservation of Energy
law that states that energy can be transformed from
one form to another, but it cannot be created or
destroyed.

Chemical Motion Radiant Chemical

Chemical Motion Electrical Thermal

Let’s Begin

Changes Between Forms of
Energy

The changes from one type of
energy to another type of energy
are called energy transformations.

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