Exploring Magnetic Forces

Grade Level

6th Grade

Duration

60 minutes

Class Size

25 students

NGSS Alignment

Disciplinary Core Ideas (DCI):

PS2.B: Types of Interactions
- Magnetic forces can act at a distance (MS-PS2-3).
PS2.A: Forces and Motion
- Forces affect motion (MS-PS2-2).

Science and Engineering Practices (SEP):

Planning and carrying out investigations
Analyzing and interpreting data
Constructing explanations

Crosscutting Concepts (CCC):

Patterns
Cause and effect

Learning Objectives

By the end of this lesson, students will be able to:

Explain the concept of magnetic forces and how they act at a distance (MS-PS2-3).
Describe magnetic fields and how they relate to magnetic forces.
Identify and differentiate between types of magnets (e.g., bar, horseshoe, electromagnets).
Investigate how magnets attract or repel and identify magnetic and non-magnetic materials.
Recognize real-world applications of magnets in everyday life and technology.

Materials Needed

Variety of magnets (bar magnets, horseshoe magnets, electromagnets if available) – at least 5 sets
Assorted objects for testing magnetism: paper clips, coins, rubber bands, plastic spoons, aluminum foil, nails
Iron filings (small containers for demonstration)
White sheets of paper
Compass (1 per group)
Small plastic containers/trays for objects
Worksheets for recording observations
Chart paper or whiteboard for drawing magnetic fields and noting key points
Markers, pens, pencils

Lesson Outline

1. Engage (10 minutes)

Begin with a quick brainstorming question: “Where do you see or use magnets in your daily life?”
Chart student responses on the board (examples might include refrigerators, compasses, credit cards, electronics).
Show a horseshoe magnet and a bar magnet, ask students to predict what the magnets might be able to do.
Pose the essential question: “How do magnets work, and what makes them attract or repel objects?”

2. Explore (20 minutes)

Activity 1: Magnetic Attraction and Repulsion

Divide students into groups of 5.
Each group explores with magnets and a mix of objects to identify which objects are magnetic.
Students record which objects the magnets attract or do not affect.
Next, students bring two bar magnets close together and observe attraction and repulsion.
Using compasses, students observe and sketch how the needle moves around the magnet, giving clues about magnetic fields.

Activity 2: Visualizing Magnetic Fields

Teacher demonstration: Place a bar magnet under a sheet of white paper and sprinkle iron filings evenly on top.
Students observe the pattern formed by filings and note how it shows magnetic field lines.
Discuss why the filings arrange themselves that way and how the magnetic field extends beyond the magnet.

3. Explain (10 minutes)

Use chart paper or whiteboard to review vocabulary: magnetic force, magnetic field, poles (north and south), attraction, repulsion, and types of magnets.
Discuss how magnets exert forces without touching objects — the concept of “acting at a distance.”
Introduce types of magnets: permanent magnets (bar, horseshoe) and electromagnets (brief explanation and example).
Connect observations from the activities to these concepts.

4. Elaborate (10 minutes)

Real-world applications: Discuss how magnets are used in compasses, electric motors, magnetic storage devices, and medical equipment (MRI).
Challenge question: “What types of magnets might be best for different tasks?”
Groups brainstorm an application and share how the properties of magnets help.

5. Evaluate (10 minutes)

Formative Assessment Ideas:

Group worksheet: Students answer questions about their exploration results — which materials were magnetic, describe magnetic attraction and repulsion, explain magnetic field patterns.
Quick quiz: Define magnetic force, list two types of magnets, give an example of a magnetic application.
Exit ticket: Write one thing you learned about magnetic fields and one real-world use of magnets.

Differentiation and Extensions

For advanced learners: Challenge to design a simple electromagnet at home using a battery, wire, and a nail (optional take-home project).
For learners needing support: Provide guided worksheets with sentence starters and visual vocabulary aids.
Cross-curricular connection: Integrate writing by having students compose a short paragraph explaining how magnets helped create a specific technology.

Classroom Management Tips

Assign groups strategically for balance and engagement.
Monitor magnet activities closely to prevent magnets from snapping violently or becoming lost.
Encourage respectful sharing of materials.

Reflection for Teachers

Observe student understanding via their explanations and worksheet responses.
Note which concepts need reteaching or greater emphasis.
Consider adding a digital component (simulations of magnetic fields) if time permits in future lessons.

This lesson integrates exploration, discussion, and real-world context grounded in NGSS standards, ensuring students develop a conceptual and practical understanding of magnets and their scientific principles.

Teaching Instructions