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Physical sciences
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# Mapping Magnetic Field Lines

This is a lesson about the magnetic field of a bar magnet. The lesson begins with an introductory discussion with learners about magnetism to draw out any misconceptions that may be in their minds. Then, learners freely experiment with bar magnets... (View More)

Audience: Middle school

# Electric Current Generated with a Moving Magnet

This is an activity about magnetic induction. Learners will induce a flow of electricity in a wire using a moving bar magnet and measure this flow using a galvanometer, or Am meter. Through discussion, this activity can then be related to magnetic... (View More)

# Iron Filings and (2-3D) Magnetic Field Lines

This is a lesson to demonstrate magnetic field lines in 2- and 3-dimensions. In the first activity, learners sprinkle iron filings over a magnet underneath a paper and record their observations. The second activity involves building a 3-D magnetic... (View More)

Audience: Middle school
Materials Cost: \$1 - \$5 per group of students

# Compass Needles around a Simple Circuit

This is an activity about electromagnetism. Learners will set up a simple circuit using a battery, wire, and knife switch, and then use a compass to map the magnetic field lines surrounding the wire. Next, they will add a coil of wire to the simple... (View More)

# Jumping Coils

This is an activity about electromagnetism. Learners will use a simple circuit powered by a battery source to investigate the strength of the magnetic field produced by a coil of wire in the circuit. The strength will be indicated by the deflection... (View More)

# Exploring Magnetic Fields in Your Environment

This is a lesson about measuring magnetic field directions of Earth and in the environment. First, learners go outside, far away from buildings, power lines, or anything electrical or metal, and use compasses to identify magnetic North. Next, they... (View More)

Keywords: electromagnetism
Audience: Middle school

# Mapping Magnetic Field Lines

This is an activity about electromagnetism. Learners will use a compass to map the magnetic field lines surrounding a coil of wire that is connected to a battery. This activity requires a large coil or spool of wire, a source of electricity such as... (View More)

# Mission: Solar System - Invisible Force

In this hands-on engineering challenge, learners design, build, and improve a model that allows a moving object to change direction using an invisible force. Mimicking the gravity-assisted travel of the New Horizons spacecraft, learners roll a steel... (View More)

# Mission: Solar System - Inspector Detector

Learners design and build a device that can pass above a surface and detect magnetic fields. This resource includes a challenge video, leader notes, and handouts. Two supplemental videos are included: 1) Measuring Magnetic Fields and 2) NASA flight... (View More)

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