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Marie MCCadd Coles Elementary School
8441 S. Yates
Chicago IL 60617
To explain how objects can receive a static electrical charge.
To describe the effects of bringing objects with like and unlike charges
near one another.
To compare conductors and insulators.
To identify and diagram a series circuit and a parallel circuit.
To explain the function of a fuse.
T.V. set, string, chalk, balloons, wool cloth, thread, chalkboard, water
sprayer, size D batteries, battery clips and holders, small bulbs (#41 & #48),
sockets for small bulbs, copper wire, objects to test as conductors, paper
clips, plasticine, and strands of steel wool.
1. The students will perform the following activities to understand how objects
receive a static electrical charge: Let the string hang about one inch from
the front of the T.V. set. When the television is turned on, the string
will be repelled or attracted to the television screen. Students will
inflate several balloons. They will rub the balloons with a wool cloth to
create an electrically charged surface. These balloons will cling to the
classroom ceiling and to a chalk drawing of a shelf on the chalkboard.
2. The students will perform the following activities to understand the effects
of bringing objects with like and unlike charges near one another: Students
will inflate two balloons to the same size and tie a string to each balloon.
Both balloons will be given negative charges by rubbing them with a wool
cloth. They will repel one another. Next, one of the balloons will be
given a positive charge. This balloon will be attracted to the negatively
charged balloon. The balloons will be sprayed with water to neutralize
3. The students will perform the following activities to compare conductors and
insulators: Using a simple series circuit with one small bulb, each student
will test objects to observe which materials permit a flow of electrons
(conductors) and which materials do not permit a flow of electrons
(insulators). Each student will list items tested and test results on a
4. The students will perform the following activities to understand series and
parallel circuits: After learning how to read a circuit diagram, each
student will construct a series circuit and a parallel circuit. The
students will make observations about what happens when one bulb is removed
from each of the different types of circuits. They will also observe which
circuits have brighter bulbs.
5. The students will perform the following activities to understand the
function of a fuse: Using uncomplicated written directions, each student
will make a fuse. The students will observe what happens to a fuse when too
much electricity flows through the wires.
1. Using a diagram and sentences, explain how lightning is a form of static
2. What type of circuits are used in buildings? Explain.
3. Describe a safety device that is used as part of a circuit. Explain how