what are conductors and insulators
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7/23/2019 What Are Conductors and Insulators
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What are conductors and
insulators?
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Warm Up
1. In the diagram above, the water in the pan is
changing from a liquid to a gas, or ____.
a. Melting c. condensing
b. freeing d. evaporating
!. What is matter?
a. "he amount of matter something contains.
b. #ver$thing in the universe that has mass andta%es up space
c. "he amount of salt in water
d. "he amount of space that matter ta%es up.
&. 'tud$ the picture above. When the
sun comes out, the snowman
melts, or changes from ____.
a. solid to liquid
b. liquid to solid
c. gas to liquid
d. solid to gas
(. )uo$anc$ is__________
a. "he abilit$ for an ob*ect to float
b. "o form a solution with another
material
c. "he amount of matter somethingcontains.
d. evaporation
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What is a conductor?
+ conductor is something which allows electricit$to flow through.
+ n e-ample of a conductor is / 'cissors / 0aper clip / luminum foil / Iron / 'teel / opper
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What is a Insulator?
+ n insulator is what ma%es electricit$ from notflowing
+ #-amples of insulators are / otton
/ 0aper
/ 0lastic
/ 2lass / 3ubber
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"hese are pictures of
conductors and Insulators
Conductors Insulators
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4ets demonstrate5.
Materials 6eeded
+ 1.!7volt lightbulb,
+ a matching lightbulb base,+ a 87cell batter$,
+ a banana
+ three pieces of copper wire with the+ insulation stripped off the ends.
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0rocedure
8raw the following picture in $our science
*ournal.
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4et me demonstrate5
'et up the equipment as shown and tape
the wires to the batter$.
+8oes an$thing happen?
+8oes the banana allow electricit$ to flow throughthe circuit and light the bulb?+Is it a conductor or an insulator? Wh$ or wh$ not?
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Use of a circuit tester: To test whether thematerial is a good electrical conductor.
Example of a circuit tester
6ow its $our turn5
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Inquiring Minds Want to 9now:
onductor or Insulator? "hat is the question:
6ow ta%e the bag ofmaterials and spreadthem out in front of
$ou.8raw the following tablein $our *ournal.
s $ou test each item,
record whether it wasa conductor or andinsulator with a
Item Conductor Insulator Did thebulblight?
'poon
0aper clip
pencil
3ubberband
eraser
;oil
6ail
coin
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Step 1: Set up the circuittester as shown above.
Step 2: Place the obectbetween the open ends of thewire.
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If the bulb lights up, itmeans the material allows
electric current to flowthrough the closed circuit.
The brighter the bulb, thebetter the conductor ofelectricity is the material.
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6ow write $our conclusion based
on $our investigation5
+ What ob*ects were conductors ofelectricit$? Wh$?
+ What ob*ects were insulators of electricit$?
+ 8id an$ of the conductors have commoncharacteristics?
+ What about the insulators?
+ <ow would %nowing the differencebetween conductors and insulators help$ou in the real world?
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Conductors allow electricit$ flow through them.
onductors are materials that can carr$
electricit$ 7 the$ conduct electricit$. Metal
materials such as copper, iron, steel andaluminum are all good conductors of electricit$.
Insulators do not allow electricit$ to flow through
them. Materials such as wood, plastic, rubberand glass do not carr$ electricit$ and are called
insulators / the$ don=t conduct electricit$.
onclusions5
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