"If it wasn't for electricity, we'd all be watching television by candlelight."

-George Gobel

 

 

 

 

Electrifying Facts

(Grade Level 4)

 

 

Now You're Playing with Power!

 

 

 

Better Learning Through Science

 

 

Here's a chance for 4th Graders

 to hone the skills acquired in their Electrical Circuit Unit.

By constructing a  simple circuit, 

 students can review and exchange subject matter in an

 inventive way.

 

Lesson Time 

 

Part 1 - 20 minutes

Part 2 - 50 minutes

 

 

 

Materials

 

The following circuitry materials can be found in a 4th grade level Electrical Circuit Kit.

                                                

3     copper wires (conductors)

1     #40 bulb

1      bulb holder (energy receiver)

2      Fahnestock clips

1      battery (energy source)

1      rubber band

1     11 1/2 inch manila file folder

masking tape

aluminum foil

loose leaf paper

hole puncher

 

 

 

 

Procedures

 

Part 1

 

The Board

 

Step 1 

Use the front cover of a manila folder. Create a matching column on the front cover. Place 5 or 6 problems down the left side and place the answers down the right side. Don't list the correct solution directly across from its problem. Mix them up.

Step 2

 Leave  margins of 1 inch on both the left and right side of the matching column.

As you list the problems down the left side, create a 1 inch space between each problem. Create the same amount of space between the answers on the right side.

Step 3

Using a hole puncher, punch a hole in the margin in front of each problem and after each answer.

 

Front Cover of the Manila Folder

Sample 

      8 x 6 = 

 

 O      8 x 3 =  

 

  O      8 x 5 = 

 

  O      8 x 2= 

 

  O     8 x 9 = 

 

40         O

 

  72              O

 

 16              O

 

24             O

 

48             O

 

 

Step 4

Flip the folder open, and on the back of  the front cover, connect each problem and answer with a pencil line.  All pencil lines should run up and down, diagonally, as no problem should be directly across from its correct answer. 

 

 

Inside Front Cover of the Manila Folder

Sample

 

Step 5

Cover one pencil line with a 1/2 inch wide strip of aluminum foil. Be sure that the holes next to both the question and answer are completely covered by the foil. Check the front of the file to make sure the foil is covering the hole. Secure the foil with masking tape. 

Step 6

Next, cover this strip of aluminum foil with a 1/2 inch wide strip of loose leaf paper. This will insulate it. Secure this paper with masking tape. 

HINT: Work on one pencil line at a time, covering it with foil and paper, as well as securing it with masking tape before moving on to the next problem. This will avoid the possibility of crossed circuits. 

 

 

 

 

Part 2

 

The Circuit

 

Step 1

To make the battery holder, bend two Fahnestock clips open and thread the rubber band under the hooks. Bend the Fahnestock clips back.

 

Step 2

Place the holder on the battery so the flat side of the Fahnestock clip touches each terminal of the battery. Squeeze the Fahnestock clip and insert the copper wire under the hook. Repeat this procedure on  the other Fahnestock clip.

 

 

Step 3

Screw the bulb into the holder so that the base terminal touches metal.          

Connect one wire from the positive terminal of the battery to the bulb holder (energy receiver).

Connect the second  wire to the clip on the negative terminal of the battery.

Connect the third  wire to the second clip on the bulb holder.

 

The Circuit

 

 

 

 

You are now  ready to check your answers

 

If you place the end of one of the wires on the aluminum foil covered hole in front of a question and at the same time touch the hole behind the correct answer with the wire, the bulb will light up. If the bulb doesn't light, you've chosen the wrong answer. Try again. Did it light this time?

 

 

Congratulations, you now have created  Electrifying Facts. Switch folders with classmates to learn even more!

 

 

 

 

"Scientists are simply those who understand that there is little difference between obstacle and opportunity and are able to turn both to their advantage."

-Machiavelli

 

 

There was a young woman named Bright
Whose speed was much faster than light.
She set out one day
In a relative way,
And returned on the previous night.

-Anon

 

Two hydrogen atoms meet. One says "I've lost my electron." The other
says "Are you sure?" The first replies "Yes, I'm positive."