diff --git a/curriculum/challenges/english/blocks/review-javascript-comparisons-and-conditionals/6723c554025f449f4f39c3f5.md b/curriculum/challenges/english/blocks/review-javascript-comparisons-and-conditionals/6723c554025f449f4f39c3f5.md
index c752b89b6d2..3cb1601d7ba 100644
--- a/curriculum/challenges/english/blocks/review-javascript-comparisons-and-conditionals/6723c554025f449f4f39c3f5.md
+++ b/curriculum/challenges/english/blocks/review-javascript-comparisons-and-conditionals/6723c554025f449f4f39c3f5.md
@@ -16,7 +16,7 @@ console.log(undefined < 0); // false (NaN < 0 is false)
 console.log(undefined >= 0); // false (NaN >= 0 is false)
 ```
 
-- **Comparisons and `null`**: The `null` type represents the intentional absence of a value. `null` converts to `0` in numeric contexts, which may result in unexpected behaviour in numeric comparisions:
+- **Comparisons and `null`**: The `null` type represents the intentional absence of a value. `null` converts to `0` in numeric contexts, which may result in unexpected behavior in numeric comparisions:
 
 ```js
 console.log(null < 0); // false (0 < 0 is false)
diff --git a/curriculum/challenges/english/blocks/review-javascript/6723d3cfdd0717d3f1bf27e3.md b/curriculum/challenges/english/blocks/review-javascript/6723d3cfdd0717d3f1bf27e3.md
index 79140ad78b7..6e1f9ae0eca 100644
--- a/curriculum/challenges/english/blocks/review-javascript/6723d3cfdd0717d3f1bf27e3.md
+++ b/curriculum/challenges/english/blocks/review-javascript/6723d3cfdd0717d3f1bf27e3.md
@@ -604,7 +604,7 @@ console.log(undefined < 0); // false (NaN < 0 is false)
 console.log(undefined >= 0); // false (NaN >= 0 is false)
 ```
 
-- **Comparisons and `null`**: The `null` type represents the intentional absence of a value. `null` converts to `0` in numeric contexts, which may result in unexpected behaviour in numeric comparisions:
+- **Comparisons and `null`**: The `null` type represents the intentional absence of a value. `null` converts to `0` in numeric contexts, which may result in unexpected behavior in numeric comparisions:
 
 ```js
 console.log(null < 0); // false (0 < 0 is false)