diff --git a/01.curriculum/01.physics-chemistry-biology/topics.en.md b/01.curriculum/01.physics-chemistry-biology/topics.en.md
index 3b9807b35..adae4b73d 100644
--- a/01.curriculum/01.physics-chemistry-biology/topics.en.md
+++ b/01.curriculum/01.physics-chemistry-biology/topics.en.md
@@ -1,5 +1,6 @@
 ---
 title: From my perceptions of the external world,<br>To physics, chemistry, biology, and to industrial and environmental sciences<br><br>
+media_order: mathematiques_400_2400_web.jpg
 slug: physics-chemistry-biology
 ---