20040 AC Science Year 4 Physical sciences
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What does a magnetic field look like?<br />
Complete the following experiment to see what a magnetic field looks like.<br />
Materials:<br />
• bar magnet<br />
• shaker<br />
• plastic wrap<br />
• iron filings<br />
• sheet of paper<br />
I. Steps:<br />
O Wrap magnet in plastic wrap to allow easy removal of iron filings.<br />
8 Place iron filings in shaker.<br />
Q Place paper on top of magnet.<br />
2. Prediction: What pattern will the iron filings make when sprinkled onto the<br />
sheet of paper?<br />
3. Sprinkle the iron filings on top of the paper and draw the pattern that<br />
appears. Was this the same as your prediction?<br />
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4. Record any difficulties which may have occurred during the experiment and<br />
what you liked or disliked. Say what seemed to work and what did not work.<br />
List any improvements you would make if you repeated the experiment.<br />
Use the back of the worksheet for recording.<br />
5. With a partner, discuss and predict what might happen if the experiment<br />
was repeated with the following variables:<br />
(a) two magnets placed in different positions near each other.<br />
(b) a magnet of different size or shape was used.<br />
6. With a partner, list any other experiments you could do with magnets.<br />
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AUSTRALIAN<br />
CURRICULUM SCIENCE (<strong>Year</strong> 4)
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