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Lesson: Electrical Resistors Science • 4th Grade

In this lesson, we will learn how to describe how electrical resistors work and how adding resistors can change the overall resistance in series and parallel circuits.

Lesson Plan

Students will be able to

define electrical resistors and identify them,
describe how electrical resistors work,
describe what parallel circuits are,
draw, interpret, and label diagrams of series and parallel circuits,
predict and explain how changing the number of resistors can affect the overall resistance in series and parallel circuits.

Lesson Worksheet

Q1:

Does this circuit diagram represent a series circuit or a parallel circuit?

Q2:

In a circuit diagram, we use symbols to show how electrical components are arranged in the circuit.

The symbol represents the wire.

Which of these symbols represents a resistor?

What does the following symbol represent?

Q3:

Which component of this circuit is a resistor?