Magnetism and Electromagnetism

Magnetism is invisible; the field is real. Oersted in 1820 discovered electric current creates magnetic field — the marriage that powers everything. Indirect aim: electromagnetism, preparation for modern physics, motor/generator understanding.

• Framework: Montessori
• Unit: Cultural Studies
• Learning area: Physical Science
• Level: Ages 8-10

Objectives

• Understand magnetism: poles, field, materials
• Build an electromagnet
• Discover Oersted's finding: current creates magnetism
• Apply to motors and generators

Materials

• Bar magnets, iron filings
• Wire, battery, iron nail, compass
• Simple electromagnet kit
• Story of Oersted

Instructions

1. Explore magnet poles with iron filings. 2. Test materials for magnetic attraction. 3. Build electromagnet: wire around iron nail, attach to battery. Test on paperclips. 4. Oersted story: compass needle deflected near current-carrying wire. 5. Research motors (electricity → motion) and generators (motion → electricity). 6. Every appliance uses this. 7. Study Maxwell's equations conceptually. 8. File.

Educator tip

The electromagnet is pure magic to children — a nail becomes magnetic when connected to battery. Do it slowly.

Assessment

Observe construction, Oersted experiment understanding, and real-world application.

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