diff --git a/Grade 10/Science/SNC2DZ/Single_Displacement_Test.markdown b/Grade 10/Science/SNC2DZ/Single_Displacement_Test.markdown
index f1bfe16..1da189a 100644
--- a/Grade 10/Science/SNC2DZ/Single_Displacement_Test.markdown	
+++ b/Grade 10/Science/SNC2DZ/Single_Displacement_Test.markdown	
@@ -68,7 +68,7 @@ how they vary:
 - $`Ag, Cu, Zn, Mg`$
 
 ### Activity 2 Ordered Strongest To Weakest
-- $`Pb, Sn, Ni Fe`$
+- $`Pb, Sn, Ni, Fe`$
 
 ### Activity 3 Ordered Strongest To Weakest
 - $`Cu Pb, Fe, Zn`$