Properties of Magnets

Active learning works for magnets because students need to feel the unseen pull and push of forces. When they handle real objects and observe immediate reactions, they build durable understanding that paper explanations cannot match.

• 4th Class
• Exploring Our World: Scientific Inquiry and Discovery
• 4 activities
• 20 min–35 min

Learning Objectives

1. Classify a given set of objects as magnetic or non-magnetic after conducting tests.
2. Explain the phenomenon of attraction and repulsion between two magnets based on their poles.
3. Analyze the behavior of magnets by predicting and observing interactions between like and unlike poles.
4. Identify materials that are attracted to magnets.

Stations Rotation

⏱ 35 min·Small Groups

Sorting Stations: Magnetic Materials Hunt

Prepare stations with trays of 10-15 classroom objects like keys, erasers, coins, and screws. Small groups predict which items are magnetic, test with provided magnets, sort into magnetic/non-magnetic piles, and record results on charts. Rotate stations after 10 minutes for variety.

Prepare & details

Differentiate between magnetic and non-magnetic materials through experimentation.

Facilitation Tip: During the Sorting Stations, set up three labeled trays and rotate objects so students test each item only once to prevent confusion.

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·Pairs

Pole Play: Like and Unlike Interactions

Mark north (N) and south (S) poles on four bar magnets per pair. Students predict what happens when bringing like poles or unlike poles close, test predictions, and tally successes in notebooks. Pairs share patterns with the class.

Prepare & details

Explain how two magnets interact when brought close together.

Facilitation Tip: For Pole Play, place a strip of colored tape on each pole so students can quickly identify and compare orientations.

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

⏱ 30 min·Small Groups

Field Lines: Iron Filings Reveal

Place a bar magnet under white paper, sprinkle iron filings, and tap lightly to show curved field lines. Small groups draw patterns for north-south and like poles, then compare sketches. Discuss how filings align with forces.

Prepare & details

Analyze the concept of magnetic poles and their behavior.

Facilitation Tip: During Field Lines, remind students to tap the petri dish gently to spread filings evenly before sketching.

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

⏱ 20 min·Pairs

Barrier Test: Forces Through Materials

Students test magnet attraction through barriers like paper, plastic, wood, and cloth using paperclips. In pairs, rate strength on a scale of 1-5, graph results, and explain patterns.

Prepare & details

Differentiate between magnetic and non-magnetic materials through experimentation.

Facilitation Tip: In the Barrier Test, provide one magnet per pair to avoid tangling and ensure all pairs finish at the same time.

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 letting students lead with their hands first, then layer in vocabulary. Correct small-group language so terms like ‘attract’ and ‘repel’ become precise tools. Avoid long lectures about fields before students have felt the forces themselves. Research shows early concrete experiences anchor later abstract models like field lines and domains.

What to Expect

Successful learning looks like students using clear evidence to separate magnetic from non-magnetic materials, explaining pole interactions with correct vocabulary, and sketching field patterns that match their observations. They should confidently predict and test magnet behaviors in new situations.

Watch Out for These Misconceptions

Common Misconception

During the Sorting Stations, watch for students who group all metals together.

What to Teach Instead

Prompt them to re-test aluminum foil and copper coins with both bar and horseshoe magnets, then ask the group to add a third category called ‘non-magnetic metals’ to their chart.

Common Misconception

During Pole Play, watch for students who claim that two magnets always attract.

What to Teach Instead

Have them mark each pole with tape, then guide them to test every possible pairing before concluding that like poles push apart and unlike poles pull together.

Common Misconception

During Barrier Test, watch for students who think a magnet loses strength when placed next to paper or plastic.

What to Teach Instead

Ask them to measure how many paperclips the magnet holds through each barrier and record the data. The consistent count will show that non-ferromagnetic materials do not weaken the force.

Assessment Ideas

Exit Ticket

After the Sorting Stations, provide a small collection of objects and ask students to sort them into ‘Magnetic’ and ‘Non-magnetic’ groups. Require a one-sentence reason using at least one of these words: iron, nickel, cobalt, ferromagnetic.

Quick Check

After Pole Play, hold up two bar magnets in different orientations and ask students to write their prediction of attraction or repulsion on a sticky note. Reveal the outcome and ask students to explain using the words ‘poles’ and ‘interaction’.

Discussion Prompt

During the Field Lines activity, pause after the iron filings form patterns and ask students to describe what the lines show about the magnet’s force. Listen for mentions of ‘strongest near the poles’ and ‘force radiating outward’ to assess spatial understanding.

Extensions & Scaffolding

• Challenge: Ask students to design a way to move a paperclip across a table using only a magnet beneath the surface without touching it directly.
• Scaffolding: Provide a labeled picture card for each station showing which side of the magnet to hold near the object.
• Deeper exploration: Let students compare the strength of different magnet shapes by counting how many identical paperclips each can hold in a chain before breaking.

Key Vocabulary

Magnet	An object that produces an invisible force field, called a magnetic field, which can attract or repel certain materials.
Magnetic Material	A material that is attracted to a magnet, typically containing iron, nickel, or cobalt.
Non-magnetic Material	A material that is not attracted to a magnet, such as wood, plastic, or aluminum.
Attraction	The force that pulls two magnets or a magnet and a magnetic material together.
Repulsion	The force that pushes two magnets apart.
Pole	The ends of a magnet, typically labeled North and South, where the magnetic force is strongest.