GRADE 4 SCIENCE · CHAPTER 3
Forces, energy & waves
Study each lesson in order, or choose the idea you need today.
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Electricity
Reason about a simple circuit
Recognize that a simple battery circuit needs a complete conducting path.
Energy
Describe energy transfers in everyday devices
Identify useful energy outputs while recognizing that devices can transfer energy in several ways.
AN EXAMPLE FROM THIS CHAPTER
A wire is disconnected in a battery-and-bulb circuit. What happens to the path?
Show answer & explanation
It is open.
The gap breaks the complete conducting path.
Curriculum & source notes
These are original Little Play study books organized around U.S. school topics. The official curriculum references below guide topic scope and progression. Coverage is selected, not a complete curriculum or a verified match to every state standard. They are not copies of a publisher’s textbook. Check your school’s syllabus and book edition.
High-school courses can be taken in different years. Choose the topic that matches the student’s current course.
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