Guide
www.SquishyCircuits.com    Page 13 
Remember, the shape of the dough does not matter. This is another example of a parallel circuit with 
the two pieces of conductive dough separated with a layer of insulating dough.  
Applicable Vocabulary:
 
Series circuit 
 
Parallel circuit 
Main Objective:
Upon completion of this lesson, students will be able to explain using models and verbal and/or written 
language the difference between series and parallel circuits, and demonstrate examples of a use for 
each.
Materials:
 
Insulating dough (roughly ¼ cup per pair of students) 
 
Conductive dough (roughly 2 cups per pair of students) 
 
1 battery pack with four (4) AA batteries 
 
At least three light emitting diodes 
 
Optional: motors, switches, fans, and buzzers 
 
Student science journal or provided handout 
Time: 
 
Pair students and hand out materials: 5 minutes 
 
Discovery time (Steps 2-3): 5 minutes 
 
Sharing: 5 minutes 
 
Instruction: 5 minutes 
 
Redesign, retest: 10 minutes 
 
Data recording: 5 minutes 
Total Time: 35 minutes 










