diff --git a/src/components/tools/ToolsHub.tsx b/src/components/tools/ToolsHub.tsx
index e9fd741..4e1efe1 100644
--- a/src/components/tools/ToolsHub.tsx
+++ b/src/components/tools/ToolsHub.tsx
@@ -44,7 +44,7 @@ const tools = [
   },
   {
     title: 'Advanced Analysis',
-    description: 'Treatment detection checklist and proportion analyzer (origin guidance lives in the Learn section).',
+    description: 'Treatment detection checklist and proportion analyser (origin guidance lives in the Learn section).',
     href: '/tools/advanced',
     icon: 'chart',
     variant: 'crystal' as const,
diff --git a/src/pages/index.astro b/src/pages/index.astro
index 08650f3..99db6c0 100644
--- a/src/pages/index.astro
+++ b/src/pages/index.astro
@@ -267,7 +267,7 @@ const iconPaths: Record<string, string> = {
         <h2 class="text-3xl font-bold text-slate-900 mt-2">Test Your Knowledge</h2>
         <p class="mt-4 text-lg text-slate-600 max-w-2xl mx-auto">
           756 questions across 8 categories, generated from FGA curriculum content.
-          Practice at your own pace or challenge yourself with timed exams.
+          Practise at your own pace or challenge yourself with timed exams.
         </p>
       </div>
 
@@ -284,7 +284,7 @@ const iconPaths: Record<string, string> = {
                   </svg>
                 </IconBox>
                 <div>
-                  <h3 class="text-xl font-semibold text-slate-900 group-hover:text-red-600 transition-colors">Practice Mode</h3>
+                  <h3 class="text-xl font-semibold text-slate-900 group-hover:text-red-600 transition-colors">Practise Mode</h3>
                   <p class="text-sm text-slate-600">Learn as you go</p>
                 </div>
               </div>
@@ -405,7 +405,7 @@ const iconPaths: Record<string, string> = {
   <!-- CTA Section -->
   <section class="py-24 bg-gradient-to-br from-crystal-600 to-crystal-800">
     <Container size="xl" padding="none" class="px-4 sm:px-6 lg:px-8 text-center">
-      <h2 class="text-3xl font-bold text-white">Ready to visualize crystals?</h2>
+      <h2 class="text-3xl font-bold text-white">Ready to visualise crystals?</h2>
       <p class="mt-4 text-lg text-crystal-100 max-w-2xl mx-auto">
         Start with the interactive playground or explore our gallery of {familyCount} mineral families.
       </p>