7/30/2019 Lesson Plan on Static Electricity

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Mayela Hernandez

EDEL 441

Magnetic Field

Grade: 3rd

Materials:

1. Rice Krispies Cereal (2 boxes)

2. Sweater (to make static electricity)

3. (5) pieces of cloth [prefer sweater type material]

4.Experiment Summary worksheet (See last page)BalloonsProcedures:

Engage (2-3 minutes):Ask students: How many of you know what rice krispies are? Hasanyone ever seen rice krispies jump before? Raise your hand if you even think that is possible?

Raise your hand if that is the craziest think you have heard? Well, today Im going to show you away to make rice krispies jump.

Explore (10-15 minutes): Have the students come to the back table as I model the experimentthey will be doing. The experiment will go as follows:

1. Spread some rice krispies on the tabletop.

2. Blow up the balloon and tie it off.3. Charge the balloon with static electricity by rubbing the wool against it. (For a

little laugh, I might also use a students head/hair)

4. Place the balloon about 1 inch over the top of the rice krispies.

5.Watch as the static electricity in the balloon attracts the rice krispies. Beamazed as they jump from the table and stick to the side of the balloon.

Explain (5-10 minutes):When we rub the balloon with the piece of wool, electrons jump fromthe wool to the balloon. This gives the balloon a negative charge. The rice krispies on the table

are positively charged. When we hold the balloon over the rice krispies the opposite chargesattract, meaning the negatively charged balloon attracts the positive charge of the rice krispies.As a result the rice krispies defy gravity and jump to the balloon.

Elaborate (15-20 minutes): Teacher will send students back to their desk and say: Now it isyour turn to experiment with static electricity. Students will now have the opportunity to

elaborate on what they just learned by conducting the experiment on their own as follows:

Pass out a handful of rice krispies to each student and pass out 1 piece of cloth to each group.

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The students will take turns sharing the cloth to make static electricity on their balloon. Students

should rub the cloth about 10 times, and then pass the cloth. Each student gets a chance to maketheir own rice krispies jump.

Evaluate (5-10 minutes): Students will complete the experiment summary worksheet (see lastpage) after the experiment has been conducted and all materials are put away.

Teaching Method: During the modeling of the experiment portion of the lesson

students will engage in cooperative learning and direct-instruction.

Safety precautions:

Do not throw the rice krispies Do not put the rice krispies in your mouth. Do not hit anyone with your balloon Do not suck the air out of your balloon

Teacher Information:

When we rub the balloon with the piece of wool, electrons jump from the wool to the balloon.This gives the balloon a negative charge. The rice krispies on the table are positively charged.

When we hold the balloon over the rice krispies the opposite charges attract, meaning the

negatively charged balloon attracts the positive charge of the rice krispies. As a result the rice

krispies defy gravity and jump to the balloon.

Integration:

Writing: Students will write about what their favorite part of the experiment was on the Static

Electricity Experiment worksheet. They will also draw a picture of what they saw in the

experiment on the same worksheet.

History: Have the students researchExtend:Have the students research the Earths magnetic field. Why does Earths magnetic field change

over time while a bar magnets field stays the same?

.

Standards:

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P.5.B.3 Students know a magnetic force causes certain kinds of objects to attract and repel each

other. E/S

N.5.A.5Students know how to plan and conduct a safe and simple investigation. E/S