| A | B |
|---|
| atom | basic building block of matter |
| proton | positive electrical charge |
| electron | negative electrical charge |
| neutron | no electrical charge (neutral) |
| attract | force that pulls two objects with opposite electric or magnetic charges together |
| repel | force that pushes two objects with like electric or magnetic charges apart |
| leaders | jagged streaks of built up negative charges going from cloud to ground |
| return strokes | positive charges, following leaders path, going from ground to cloud (lightning) |
| circuit | uninterrupted flow of electricity |
| battery | stores electricity |
| conductor | allows the electric current to travel |
| insulator | inhibits the flow of electricity |
| series circuit | circuit in which electricity flows one way |
| parallel circuit | circuit in which electricity flows in several directions |
