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Jean Ladendorf
Table of Contents
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Magnetism and Electricity
Table of Contents
Science Standard
Static Electricity
Components of Static
Electricity
Atom
Basics of Static Electricity
Electric Currents
Current
Does It Conduct?
Conductivity Table
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Magnets
Bar Magnets vs.
Electromagnets
Pie Chart Magnets
Bar Graph Magnets
Show What You Know
Task 1
Task 2
Task 3
Task 4
S5P3 Students will investigate electricity,
magnetism and their relationship.
Static Electricity
Bar Magnets &
Electromagnets
Electric Circuits
Conductors &
Insulators
Basics of Static Electricity
Electrons
pulled from
orbit
Surface
Charges
Repulsion
Static
Electricity
Force
Fields
Attraction
Causes
Static Electricity
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You walk across the carpet, reach for the
doorknob and …… ZAP!!!!! You get a shock.
What is going on here?
As you walk across the carpet, electrons
move from the carpet to you.
Now, you have extra electrons.
When you touch the doorknob, you get a
ZAP!
The electrons move from you to the knob
and you feel the shock.
Static Electricity
To go back to
Basics of static
electricity click
here
Atoms
Protons
Electrons
Neutrons
Positive (+) charge
Negative (-) charge
No charge
Electric Circuits
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An electric circuit is a
path around which
electricity can travel.
There must be a source
of electricity, and an
unbroken path from
one side of the source
to the other.
Current
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The flow of electrical charges.
Does it Conduct?
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Conductor – A substances that allow
electricity to flow through it.
Insulator – A substance that does not
allow electricity to flow through it.
Conductivity Table
Conductors
Insulators
Paper Clip
Rubber
Copper Wire
Chalk
Water
Marble
Trees
Cotton
Magnets
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A magnet is an object that can push or pick up materials made of iron, steel, or nickel.
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Every magnet has two places where its strength is concentrated, a north and south pole.
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A magnet that is free to turn will come to rest with its poles aligned in a north-south
direction.
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Unlike poles of a magnet attract each other. Like poles of a magnet repel each other.
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A magnet can be made from a steel object by striking it with a magnet.
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Once magnetized, a piece of steel can remain magnetized indefinitely.
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A magnetic compass works because the earth itself is a magnet: the compass magnet
interacts with the earth-magnet.
Bar Magnets vs. Electromagnets
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Bar Magnets
Devices in the shape
of a bar with
magnetic poles at
each end that
attract iron and
produce a magnetic
field.
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Electromagnets
Metals that become
magnetic when a
coil of wire with a
electric current is
wrapped around it.
Magnets in Our Classroom
% of Each Type of Magnet
35%
40%
Bar
Horseshoe
Ring
15%
10%
Disk
Number of Paper Clips
Picked Up
Our Electromagnet Investigation
10
9
8
7
6
5
4
2
2
1
0
1
2
3
4
Number of Batteries
5
Show What You Know
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Choose one of the following
performance tasks.
If you choose to perform either of the
tasks which require you to light a light
bulb, be sure to show your project to
the teacher while the bulb is lit.
Performance Task 1
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You’re Nuts!
Using styrofoam packing peanuts and a
piece of wool, devise a plan to attach
the packing peanuts to the wall in the
shape of your name.
Performance Task 2
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Light Up! Light Up!
Build a closed circuit using at least 1
battery, 1 switch and 1 light bulb.
Performance Task 3
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Light Up Again!
Build a closed circuit using at least 1
battery, 1 switch and 1 light bulb using
Challenge 1 on this website.
http://www.schoolscience.co.uk/content
/3/physics/circuits/circh3pg1.htmll
Performance Task 4
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Magnet Movie!
Cut a scene from construction paper and glue it to
the inside of a shoe box. You could make a
seashore, a desert – anything goes!
Draw and cut out 2 objects that can move around in
your scene.
Devise a plan to use magnets to move your objects
around in the scene that you created.