diff --git a/Grade 9/Science/SNC1DZ/Unit_4_Physics_Study_Sheet.md b/Grade 9/Science/SNC1DZ/Unit_4_Physics_Study_Sheet.md
index 8651536..bcb2931 100644
--- a/Grade 9/Science/SNC1DZ/Unit_4_Physics_Study_Sheet.md	
+++ b/Grade 9/Science/SNC1DZ/Unit_4_Physics_Study_Sheet.md	
@@ -43,6 +43,7 @@
 | Ohmmeter | a device used to measure resistance|
 | Resistor |a device that reduces the flow of electric current|
 | Ohm’s law |the straight line relationship between voltage and current; `R = V/I`|
+| Electrolyte | Anything that conducts electrons, usually a liquid solution|
 
 
 ## Static Charges