NGSS Curriculum Science

4. Demonstrate the shape of a magnetic field

Mission Objectives

Construct field lines around a magnet

Describe the factors that affect the field lines around a magnet

Describe magnetic shielding

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KS3-23-04 Handout PDF KS3-23-04 Handout

Keywords

Words and meanings to learn

magnetic field strength

the magnetic influence a magnet has on a place in space; it is highest at the poles

iron filings

small shavings of iron produced by filing or a similar mechanical process

magnetic field lines

lines used to indicate the direction and strength of a magnetic field at various points in space

plotting compass

a small compass that can be used to draw the magnetic field of a magnet

magnetic field

the region around a magnet which causes other magnetic materials to experience a force of attraction or repulsion

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This lesson has been written by

Kate Richards

Kate’s journey as a science educator spans over 15 enriching years. Her passion for unravelling the complexities of the human body led her away from medicine (as she hates blood but loves medical t-shows) and into the world of teaching. She’s had the privilege of nurturing young minds in KS3 and KS4 science, guiding A-level Biology students, and even taught year 4 students in Spain, broadening her teaching horizons early in her career. Kate holds a Masters in Teaching (MTeach) and specialises in biology. Her research for her Master's degree focused on the profound impact of self-efficacy on classroom learning. Beyond the classroom, she finds solace in leisurely family walks and exploring new destinations through travel. She finds that the most rewarding aspect of teaching is witnessing those magical "light bulb moments" when students grasp the intricacies of science right before her eyes. 

Required Resources

Resources:

Plotting magnetic fields - Paper, iron filings, tea strainer, iron nail (or another magnetic object), plotting compasses and two bar magnets.

Magnetic shielding - Paper clip, thread, boss clamp and stand and a selection of magnetic and non magnetic materials.

Handout: Questions related to the mission assignment and space for students to draw their diagrams.

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