Magnets and Magnetic Materials

Active learning works for magnets because students need direct sensory experience to grasp invisible forces. When children handle objects and feel attraction or resistance, their understanding shifts from abstract ideas to concrete evidence. These activities turn a simple concept into a memorable investigation.

• 3rd Year
• Exploring Our World: Scientific Inquiry and Discovery
• 4 activities
• 25 min–40 min

Learning Objectives

1. Classify common classroom objects as magnetic or non-magnetic based on experimental results.
2. Compare the magnetic strength of different bar magnets by measuring the number of paperclips each can hold.
3. Predict which materials in the classroom environment will be attracted to a magnet.
4. Explain why certain materials are attracted to magnets while others are not, referencing the concept of magnetic materials.
5. Demonstrate how to conduct a fair test to compare the strength of two magnets.

Stations Rotation

⏱ 30 min·Small Groups

Sorting Station: Magnetic or Not

Prepare trays with 10-15 mixed classroom objects like keys, erasers, coins, and clips. In small groups, students predict if each attracts a magnet, test by hovering or lifting, then sort into two piles. Groups share one surprise item with the class.

Prepare & details

Differentiate between magnetic and non-magnetic materials.

Facilitation Tip: During Sorting Station, model how to hold the magnet steady against each object before declaring it magnetic or not.

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

Stations Rotation

⏱ 35 min·Pairs

Paperclip Relay: Strength Comparison

Provide bar, horseshoe, and button magnets plus paperclips. Pairs compete to form the longest hanging chain from each magnet without breaking contact. Measure chains, record results on a class chart, and discuss which magnet won.

Prepare & details

Compare the strength of various magnets using a simple test.

Facilitation Tip: For Paperclip Relay, remind students to count each paperclip carefully and record results on a shared chart.

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

Stations Rotation

⏱ 25 min·Whole Class

Prediction Hunt: Classroom Scan

List 20 classroom items on a sheet. Whole class predicts yes/no for magnetism, then tests in teams with shared magnets. Tally results on board, noting matches and mismatches for group reflection.

Prepare & details

Predict which objects in the classroom will be attracted to a magnet.

Facilitation Tip: In Prediction Hunt, circulate and ask students to explain why they chose a specific object to test next.

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

Stations Rotation

⏱ 40 min·Small Groups

Magnet Lift Test: Force Ranking

Use identical stacks of washers. Students rank magnets by how many washers each lifts at once. Rotate magnets, record data in tables, and graph strengths for comparison.

Prepare & details

Differentiate between magnetic and non-magnetic materials.

Facilitation Tip: During Magnet Lift Test, provide a variety of magnet shapes so students notice size and thickness do not always match strength.

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

Teaching This Topic

Teach magnets by prioritizing hands-on trials over explanations. Students learn best when they test, observe, and discuss results in real time. Avoid long lectures; instead, guide students to ask questions and compare findings with peers. Research shows that early misconceptions about metals and size persist unless students confront them directly with evidence.

What to Expect

By the end of these activities, students should confidently separate magnetic from non-magnetic materials and explain why. They should also compare magnet strengths using evidence from their tests, not assumptions. Clear discussions and sorting tasks show that predictions match observable results.

Watch Out for These Misconceptions

Common Misconception

During Sorting Station, watch for students placing all metals into the magnetic pile.

What to Teach Instead

Provide a tray with specific metals like copper, aluminum, and steel. Ask students to test each one and record results in a group chart to highlight that not all metals attract.

Common Misconception

During Paperclip Relay, watch for students assuming larger magnets always lift more paperclips.

What to Teach Instead

Provide several magnets of different shapes and sizes. Have students test and rank them, then discuss what factors besides size affect strength.

Common Misconception

During Prediction Hunt, watch for students only testing metal objects.

What to Teach Instead

Challenge students to test three non-metal objects first, then ask why they expected attraction. Use the results to discuss which materials respond to magnets.

Assessment Ideas

Quick Check

After Sorting Station, provide each pair with a mixed tray and ask them to sort and label objects. Listen for students to name specific materials and explain their reasoning based on testing.

Exit Ticket

During Magnet Lift Test, give each student a card to write one magnetic material and one non-magnetic material they tested. Ask them to draw the magnet that lifted the most paperclips and label it as strongest.

Discussion Prompt

After Prediction Hunt, present the scenario about finding magnetic items in a box. Ask students to share strategies, focusing on how they used predictions and tests to decide what to pick up.

Extensions & Scaffolding

• Challenge: Ask students to design a way to separate mixed magnetic and non-magnetic beads using only one magnet and household tools.
• Scaffolding: Provide picture cards of objects with labels for students to sort during the Sorting Station activity.
• Deeper Exploration: Introduce temporary magnets by testing how a paperclip becomes magnetized after touching a strong magnet for several seconds.

Key Vocabulary

Magnet	An object that produces a magnetic field, attracting certain metals like iron.
Magnetic Material	A substance that is attracted to a magnet, such as iron, steel, nickel, or cobalt.
Non-magnetic Material	A substance that is not attracted to a magnet, such as wood, plastic, or aluminum.
Magnetic Field	The area around a magnet where its magnetic force can be felt.
Attract	To pull towards something; magnets attract magnetic materials.