Introductory reading to go with worksheet.  Video on same concepts can be viewed here.  Crash Course Electric Charge

Worksheet on generation of charge and static electricity.  Be sure to read introduction first.  Also watch this link for explanation and examples. Crash Course Electric Charge

Information on Ohm's Law, resistance, current, and voltage.  Read before attempting practice worksheet.  Video can be found here. Crash Course Voltage

Practice Worksheet for using Ohm's Law.  Read the accompanying packet and instructions before attempting.  Video can be found here. Crash Course Voltage

https://www.physicsclassroom.com/class/circuits/Lesson-2/Electric-Current

Be sure to read web page provided in reading before attempting.

https://www.physicsclassroom.com/class/circuits/Lesson-4/Circuit-Symbols-and-Circuit-Diagrams

Worksheet on basic circuit diagram symbols.  Make sure you read before you attempt.

Reading on series circuits.  For further explanation watch Crash Course Resistors and Batteries and Crash Course Circuit Analysis

For information, look at the reading and watch the following videos:  Crash Course Resistors and Batteries and Crash Course Circuit Analysis