Magnets and Their Forces

Active learning helps students grasp abstract magnetic forces because they experience the pull and push directly. By testing, predicting, and designing with magnets, students build durable understanding instead of relying on verbal explanations alone.

• 5th Grade
• Science
• 4 activities
• 25 min–50 min

Learning Objectives

1. Explain how magnetic poles interact to cause attraction or repulsion.
2. Compare the magnetic field strength of different bar magnets by observing their effect on paper clips at varying distances.
3. Design and build a simple device, such as a magnetic levitation track or a magnetic fishing game, that utilizes magnetic force to perform a specific function.
4. Identify materials that are attracted to magnets and classify them as magnetic or non-magnetic.
5. Analyze how the distance between magnets affects the strength of their attractive or repulsive force.

Inquiry Circle

⏱ 40 min·Small Groups

Inquiry Circle: Testing Magnetic Strength at Distance

Student groups use a horseshoe magnet and a bar magnet to test how many paper clips each lifts at distances of 1 cm, 2 cm, and 5 cm. They record results in a shared data table, graph the relationship between distance and strength, then compare findings across groups.

Prepare & details

Explain how magnets attract and repel certain materials.

Facilitation Tip: During the Collaborative Investigation, circulate and ask groups to predict how many paperclips they think the magnet will hold at 1 cm, 3 cm, and 5 cm before testing to build anticipation and reasoning.

Setup: Groups at tables with access to source materials

Materials: Source material collection, Inquiry cycle worksheet, Question generation protocol, Findings presentation template

• Analyze
• Evaluate
• Create
• Self-Management
• Self-Awareness

Think-Pair-Share

⏱ 25 min·Pairs

Think-Pair-Share: What Will a Magnet Attract?

Students predict which objects in a bag (penny, iron nail, aluminum foil, steel paper clip, plastic button, wooden stick) will be attracted to a magnet. They discuss predictions with a partner, test each object, then reconcile their predictions with results in a whole-class discussion focused on what these materials have in common.

Prepare & details

Compare the strength of different magnets and their fields.

Facilitation Tip: With the Think-Pair-Share, assign each pair one metal object to test and have them present their findings to the class to ensure every student contributes.

Setup: Standard classroom seating; students turn to a neighbor

Materials: Discussion prompt (projected or printed), Optional: recording sheet for pairs

• Understand
• Apply
• Analyze
• Self-Awareness
• Relationship Skills

Stations Rotation

⏱ 50 min·Small Groups

Design Challenge: Magnetic Sorter

Groups design a simple device using magnets, cardboard, string, and cups that can separate a mix of iron nails and aluminum paper clips without touching either material by hand. Groups present their designs, explain how magnetic force is applied, and evaluate which approach was most efficient.

Prepare & details

Design a simple device that uses magnetic force to achieve a task.

Facilitation Tip: For the Design Challenge, provide limited materials (e.g., one magnet, small containers) to foster creative solutions within constraints.

Setup: Tables/desks arranged in 4-6 distinct stations around room

Materials: Station instruction cards, Different materials per station, Rotation timer

• Remember
• Understand
• Apply
• Analyze
• Self-Management
• Relationship Skills

Gallery Walk

⏱ 30 min·Small Groups

Gallery Walk: Iron Filing Field Maps

Each group places a bar magnet under paper and sprinkles iron filings to create a field map showing the magnetic field pattern. Maps are posted around the room. Students tour with sticky notes to identify poles, note where the field is strongest, and compare field shapes across different magnets.

Prepare & details

Explain how magnets attract and repel certain materials.

Facilitation Tip: When students create Iron Filing Field Maps during the Gallery Walk, remind them to tap the paper gently to reveal clear patterns without overloading the magnet.

Setup: Wall space or tables arranged around room perimeter

Materials: Large paper/poster boards, Markers, Sticky notes for feedback

• Understand
• Apply
• Analyze
• Create
• Relationship Skills
• Social Awareness

Teaching This Topic

Teach magnets by letting students observe first, then explain. Avoid lengthy lectures about poles and fields before students have felt the forces themselves. Research shows concrete experiences create stronger mental models. Use misconceptions as teaching moments—ask students to test their ideas and revise them based on evidence.

What to Expect

Students will confidently explain that magnets attract certain metals at a distance, and that force strength changes with distance and material. They will also distinguish magnetic from non-magnetic materials through evidence collected in hands-on tasks.

Watch Out for These Misconceptions

Common Misconception

During the Think-Pair-Share activity, watch for students who assume any shiny metal is magnetic.

What to Teach Instead

Provide aluminum, copper, and brass along with iron nails during the Think-Pair-Share testing phase. Have students record results on a class chart labeled 'Magnetic' or 'Not Magnetic' to make the distinction clear.

Common Misconception

During the Collaborative Investigation: Testing Magnetic Strength at Distance, watch for students who believe paper blocks magnetic force.

What to Teach Instead

Have students test attraction through 1, 2, and 5 sheets of paper, recording whether the paperclip is still pulled. Use this data to show that magnetic fields pass through many materials.

Common Misconception

During the Design Challenge: Magnetic Sorter, watch for students who think a stronger magnet can lift any object.

What to Teach Instead

Ask students to graph the number of paperclips lifted at different distances and discuss how the mass of the object affects what the magnet can lift, using their collected data.

Assessment Ideas

Exit Ticket

After the Collaborative Investigation: Testing Magnetic Strength at Distance, provide two bar magnets. Ask students to draw and label arrangements for attraction and repulsion, then write a sentence explaining why each works based on their observations.

Quick Check

During the Think-Pair-Share: What Will a Magnet Attract?, give students a mixed set of objects to predict and test. Have them classify each as magnetic or non-magnetic and explain their choice using evidence from the test.

Discussion Prompt

After the Gallery Walk: Iron Filing Field Maps, pose the question: 'Imagine you have a magnet and a metal door. How could you tell if the door is made of a magnetic material without touching it?' Guide students to connect their observations of magnetic fields to real-world applications.

Extensions & Scaffolding

• Challenge: Ask students to design a magnetic device that can move a paperclip through a closed cardboard box without opening it.
• Scaffolding: Provide labeled trays with examples of magnetic and non-magnetic materials for students to sort before testing unknown objects.
• Deeper exploration: Explore electromagnets by having students build simple ones using wire, a battery, and a nail, then test their strength at different distances.

Key Vocabulary

Magnetism	A physical phenomenon produced by moving electric charges and magnetic dipoles, which results in attractive and repulsive forces.
Magnetic Pole	The two ends of a magnet, typically labeled North and South, where the magnetic force is strongest.
Magnetic Field	The area around a magnet where its magnetic force can be detected, often visualized with iron filings.
Attraction	The force that pulls opposite magnetic poles (North and South) toward each other.
Repulsion	The force that pushes like magnetic poles (North and North, or South and South) away from each other.