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Magnetic Pickups
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- Skills
- communicating
- decision making
- learning how to learn
- observing
- comparing
- organizing
- inferring
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- Materials
- bar or horseshoe magnet
- objects to test (penny, paper clip, marble)
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- Doing the Activity
- Each group of students will receive a bag of objects
(penny, sponge, paper clip, bottle cap) to test to find
out if they are magnetic.
- Remove the objects from the bag and spread them out
on your table.
- Predict (guess) which ones will be magnetic and which
ones will not be. Separate them into piles and
record your prediction on the chart on the next
page.
- Observe what happens as you get the magnet close to
each object.
- Record your results on the chart on the next
page.
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- Talking it over
- Which things are attracted to the magnet and
which things are not?
- What characteristics does each object that was
attracted have?
- What characteristics do objects that weren't
attracted have?
- Which objects were magnetic and which ones
were not?
- Can you see magnetism?
- Can you feel magnetism? Explain why or why
not.
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- What's Happening
- Magnets are used around us every day. Look at the
cabinets in your home. Many are held shut by magnets. You
probably have a magnet or two on your refrigerator at
home. And, although you might not be able to see them,
there are magnets in many of the electrical appliances in
your home that use an electric motor.
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- More Challenges
- Cut up a piece of steel wool into little bits.
Carefully separate them into strands. Lay a piece of
paper over your magnet, sprinkle the resulting iron
filings over the paper. The pattern you see it a picture
of the magnetic field. Try a magnet with a different
shape.
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- Activity Source
- "Funtivities: Hands-on Science and Math." Iowa State
University Program for Women in Science and Engineering.
Extension Distribution Center
(515) 294-5247, order # 4H-952 for grades 4-5, #4H-952LDR
for grades 4-5 leader's guide, #4H-953 for grades 6-8,
#4H-953LDR for grades 6-8 leader's guide.
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