Magnets and Us
What would our lives be like if there were no magnets?
Electromagnetism


BUILDING AN ELECTROMAGNET

Day 4: 60 minutes


Introduction

Present this material to students after they are familiar with the basic properties of magnets and electricity.

Materials Needed

1 three foot long wire
1 nail
2 batteries in holders
1 breadboard
paper clips
push pins

Activity

Pass out the above materials along with the following worksheet, and have students complete the tasks described

Electromagnetism worksheet

After the class completes the above worksheet, review the elements of an electromagnet, such as electricity wound around a magnetizeable metal, a power source, etc. Use students’ ideas about question 4 in the worksheet to dispell any myths or misconceptions about what’s going on.


This lesson was adapted from: http://www.galaxy.net/~k12/electric/elmag.shtml


California Content Standards
Science
Grade Four
Physical Sciences
SCI.4.1 Electricity and magnetism are related effects that have many useful applications in everyday life.
SCI.4.1.a. Students know how to design and build simple series and parallel circuits by using components such as wires, batteries, and bulbs.
SCI.4.1.c. Students know electric currents produce magnetic fields and know how to build a simple electromagnet.