diff --git a/ProblemLibrary/setCH151_LearningChecks/module4-4b.pg b/ProblemLibrary/setCH151_LearningChecks/module4-4b.pg
index 431def3..a836080 100644
--- a/ProblemLibrary/setCH151_LearningChecks/module4-4b.pg
+++ b/ProblemLibrary/setCH151_LearningChecks/module4-4b.pg
@@ -70,7 +70,7 @@ $popg = PopUp( [ @options ], $options[1] );
 ############################################################
 
 BEGIN_PGML
-##Physical vs Chemical Properties
+##Physical vs Chemical Changes
 
 _Classify each of the following as a physical or chemical change._  
 
@@ -121,4 +121,4 @@ END_PGML_SOLUTION
 
 
 
-ENDDOCUMENT();
\ No newline at end of file
+ENDDOCUMENT();