Teacher Site Map
5th Grade Core
USOE Science Home Page
USOE

Change and Test It!

Look closely at the diagrams below. Each has the parts needed to create a simple circuit. Try to find the same materials to test and see what changes may happen in your test.

Try it!

Objects you might test include Christmas light bulbs and electric motors. Obtain permission from an adult before testing any other electric items.

Connect the positive end of the battery (+) to the red wire shown in the diagram. Then connect the negative end of the battery (-) to the blue wire shown in the diagram. Notice what happens when both wires are connected to the battery.

Now switch the wires! Connect the positive end of the battery(+) to the blue wire shown in the diagram. Then connect the negative end of the battery (-) to the red wire shown in the diagram. Observe what happens when both wires are connected this way to the battery. How is it the same, or different than when the wires were connected to the other end of the battery?

Predict it!

What do you think will happen if you change from a simple 1.5 volt battery to a larger battery? Try it with a 9 volt battery. Did everything work the same way as with the 1.5 volt battery? How was this test similar or different from the earlier tests?

What do you think would happen if you connect more than one item to the battery? Try connecting both the bell and the light at the same time. Was it what you expected? How does the voltage of a battery affect the number of items that can be connected to it?

 

Get the plug-ins: Get Adobe Acrobat Reader , and Get Quicktime Player. (The QuickTime plug-in is needed to play sounds and movies correctly.)

Want to share photos of you or your friends doing this activity? Send it in an e-mail with the following information:

  1. The title of the activity
  2. The URL (Internet address)
  3. Your name.
Remember that no pictures can be used that show student faces or student names on it. 

Teachers should view the Teacher Site Map to relate Sci-ber text and the USOE 5th grade science core.


Updated October 24, 2008 by: Glen Westbroek

Science Home Page | Curriculum Home Page | 5th Science Core Home Page | USOE Home Page


Copyright Utah State Office of Education.