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Either through a "hands-on" activity or a classroom demonstration, students will make a small motor to see the use of magnets.
Magnetism by John Woodruff
Physics for Kids:49 Experiments with Electricity and Magnetism by Robert W.Wood
Science Projects about Electricity and Magnets by Robert Gardner
Electric motors are everywhere. In your house, nearly every mechanical movement that you see around you is caused by an AC or DC electric motor. An electric motor is all about magnets and magnetism. These small motors use magnetism to create motion. Due to the fundamental law of all magnets that opposites attract and likes repel, these forces create rotational motion inside an electric motor, thus producing the force that is necessary for driving the machine attached to the motor.
4-Communicate effectively using science language and reasoning.
Invitation to Learn:
The day before the lesson is to be presented, give all students a magnet survey sheet and have them look for magnets in use in their homes. Have them check each room in the house looking for magnets. Don 't give them too much information before sending them on the “search.” The next day, make a list on the board or chart paper of all the places the students found magnets in use. Tell the students that magnets are found in nearly every small appliance motor (i.e. can openers, blow dryers, hand drills, etc.) Discuss other places they might find magnets. Tell the students that they will be making a small motor to see the use of the magnets. (This may also be done as a demonstration if supplies are limited.)
Conclusion: Current flowing through the wire coil creates an electromagnet.
One face of the coil becomes a North pole, the other a South Pole. The permanent
magnet attracts its opposite pole on the coil and repels its like pole, causing
the coil to spin.
This lesson is part of the Fifth Grade Science Teacher Resource Book (TRB3) http://www.usoe.org/curr/science/core/5th/TRB5/. The TRB3 is designed to be your textbook in teaching science curriculum to your students. This book covers all the objectives of each standard and benchmark. If taught efficiently, a student should do well on the End-of-Level (CRT) tests. The TRB3 is designed for teachers who know very little about science, as well as for teachers who have a broad understanding of science.