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Science Electricity: Lesson 3: Attract and Repel
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Let’s Review!
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everything around us that takes up space matter
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the smallest part of all matter atom
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the center of an atom nucleus
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the particles in an atom that have a positive charge protons
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the particles in an atom that have a negative charge electrons
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the particles in an atom that do not have any charge neutrons
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The BIG Question: How is static electricity produced?
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+ + - - 0 0 no charge - + 00
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the buildup of electrical charge on an object static electricity
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+ + + - - - 000 + + + - - - 000 negative charge positive charge sock sweater - -
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The BIG Question: How do electrical charges affect one another?
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How do opposite charges affect one another? + -
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do nothing + - attractrepel
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Here is what I did to make my two objects have opposite charges: ________________________________________ Here is what happened when I put my objects next to each other: _______________________________________________ What will happen if two objects with opposite charges are placed next to each other?
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What did you do to make your hair and your balloon have opposite charges?
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+ + + - - - 000 + + + - - - 000 negative charge positive charge balloon hair
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What happened when you put your balloon next to your hair?
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I conclude that objects with opposite charges will ______________ ____________________________________________________ I know this to be true because _____________________________ ____________________________________________________ This happened because ___________________________________________ _________________________________________________________________ What will happen if two objects with opposite charges are placed next to each other? attract (stick together). my hair stuck to the balloon. my hair had a positive charge and the balloon had a negative charge.
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How do opposite charges affect one another? + -
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How do like (same) charges affect one another? + - - +
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Here is what I did to make my two objects have like (same) charges: ________________________________________ Here is what happened when I put my objects next to each other: _______________________________________________ How do like (same) charges affect one another?
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I conclude that objects with like (same) charges will ____________ ____________________________________________________ I know this to be true because _____________________________ ____________________________________________________ This happened because ___________________________________________ _________________________________________________________________ What will happen if two objects with opposite charges are placed next to each other?
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What did you do to make both balloons have the same charge?
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+ + - - 00 negative charge balloon 1 hair + + - 0 0 + + - - 00 negative charge balloon 2 hair - - - - + + + 0 0 0
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What happened when you put your two balloons next to each other?
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I conclude that objects with like (same) charges will ____________ ____________________________________________________ I know this to be true because _____________________________ ____________________________________________________ This happened because ___________________________________________ _________________________________________________________________ What will happen if two objects with opposite charges are placed next to each other? repel (push apart). the two balloons pushed away from each other. both balloons had a negative charge.
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+ + + + ++ + + + + + + + + + + + + + + +
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My Prior Knowledge 1-2 All About Atoms 3-4 How is Static Electricity Produced? 5 Electrifying Vocabulary 6-8 How Electrical Charges Affect One Another 9-10
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Electrifying Vocabulary A atom - pg. 5 attract - pg. 9
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Electrifying Vocabulary R repel - pg. 10
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Ticket Out the Door How do electrical charges affect one another? repel attract like (same) opposite
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