diff --git a/seed_data/challenges/basic-bonfires.json b/seed_data/challenges/basic-bonfires.json
index 56c58cfd36..7524602729 100644
--- a/seed_data/challenges/basic-bonfires.json
+++ b/seed_data/challenges/basic-bonfires.json
@@ -314,6 +314,7 @@
       "tests": [
         "assert.deepEqual(chunk(['a', 'b', 'c', 'd'], 2), [['a', 'b'], ['c', 'd']], 'should return chunked arrays');",
         "assert.deepEqual(chunk([0, 1, 2, 3, 4, 5], 3), [[0, 1, 2], [3, 4, 5]], 'should return chunked arrays');",
+        "assert.deepEqual(chunk([0, 1, 2, 3, 4, 5], 2), [[0, 1], [2, 3], [4, 5]], 'should return chunked arrays');",
         "assert.deepEqual(chunk([0, 1, 2, 3, 4, 5], 4), [[0, 1, 2, 3], [4, 5]], 'should return the last chunk as remaining elements');"
       ],
       "MDNlinks": ["Array.push()"],
diff --git a/seed_data/challenges/basic-html5-and-css.json b/seed_data/challenges/basic-html5-and-css.json
index ec30c917c1..c7a85c0b91 100644
--- a/seed_data/challenges/basic-html5-and-css.json
+++ b/seed_data/challenges/basic-html5-and-css.json
@@ -1013,8 +1013,8 @@
       "tests": [
         "assert($('ul').length > 0, 'You should have an <code>ul</code> element on your webpage.')",
         "assert($('ol').length > 0, 'You should have an <code>ol</code> element on your webpage.')",
-        "assert($('li').length > 5, 'You should have three <code>li</code> elements on within your <code>ul</code> element.')",
-        "assert($('li').length > 5, 'You should have three <code>li</code> elements on within your <code>ol</code> element.')"
+        "assert($('li').length > 5, 'You should have three <code>li</code> elements within your <code>ul</code> element.')",
+        "assert($('li').length > 5, 'You should have three <code>li</code> elements within your <code>ol</code> element.')"
       ],
       "challengeSeed": [
         "<link href='http://fonts.googleapis.com/css?family=Lobster' rel='stylesheet' type='text/css'>",
@@ -1831,7 +1831,9 @@
         "CSS allows you to control the padding of an element on all four sides with <code>padding-top</code>, <code>padding-right</code>, <code>padding-bottom</code>, and <code>padding-left</code> attributes."
       ],
       "tests": [
+        "assert($('.green-box').css('padding-top') === '40px', 'Your <code>green-box</code> class should give the top of elements 40px of padding.')",
         "assert($('.green-box').css('padding-left') === '40px', 'Your <code>green-box</code> class should give the left of elements 40px of padding.')",
+        "assert($('.green-box').css('padding-right') === '20px', 'Your <code>green-box</code> class should give the right of elements 40px of padding.')",
         "assert($('.green-box').css('padding-bottom') === '20px', 'Your <code>green-box</code> class should give the bottom of elements 20px of padding.')"
       ],
       "challengeSeed": [
@@ -1938,8 +1940,10 @@
         "You can also use this notation for margins!"
       ],
       "tests": [
-        "assert($('.green-box').css('padding-left') === '40px', 'Your <code>green-box</code> class should give the left of elements 40px of padding.')",
-        "assert($('.green-box').css('padding-bottom') === '20px', 'Your <code>green-box</code> class should give the bottom of elements 20px of padding.')"
+        "assert($('.green-box').css('padding-top') === '40px', 'Your <code>green-box</code> class should give the top of elements 40px of padding.')",
+        "assert($('.green-box').css('padding-right') === '20px', 'Your <code>green-box</code> class should give the right of elements 20px of padding.')",
+        "assert($('.green-box').css('padding-bottom') === '20px', 'Your <code>green-box</code> class should give the bottom of elements 20px of padding.')",
+        "assert($('.green-box').css('padding-left') === '40px', 'Your <code>green-box</code> class should give the left of elements 40px of padding.')"
       ],
       "challengeSeed": [
         "<style>",
diff --git a/seed_data/challenges/bootstrap.json b/seed_data/challenges/bootstrap.json
index 04ea59b0e0..bfd01e3b4c 100644
--- a/seed_data/challenges/bootstrap.json
+++ b/seed_data/challenges/bootstrap.json
@@ -1091,7 +1091,7 @@
       "name": "Waypoint: Style Text Inputs as Form Controls",
       "difficulty" : 0.061,
       "description": [
-        "Give your form's text input field in a class of \"form-control\". Give your form's submit button the classes \"btn btn-primary\" and give it the Font Awesome icon of \"fa-paper-plane\"."
+        "Give your form's text input field a class of \"form-control\". Give your form's submit button the classes \"btn btn-primary\" and give it the Font Awesome icon of \"fa-paper-plane\"."
       ],
       "tests": [
         "assert($('.btn-primary').length > 1, 'Give the submit button in your form the classes \"btn btn-primary\".')",