diff --git a/01.curriculum/01.physics-chemistry-biology/01.Niv1/frontmatter.yaml b/01.curriculum/01.physics-chemistry-biology/01.Niv1/frontmatter.yaml
deleted file mode 100644
index c74f31816..000000000
--- a/01.curriculum/01.physics-chemistry-biology/01.Niv1/frontmatter.yaml
+++ /dev/null
@@ -1,9 +0,0 @@
-# This page configuration is shared by all locales, in this directory.
-# You can override it in the individual frontmatter of the pages.
-
-content:
-    # https://learn.getgrav.org/15/content/collections#summary-of-collection-options
-    items: @self.children
-
-anchors:
-    active: false
\ No newline at end of file
diff --git a/01.curriculum/01.physics-chemistry-biology/01.Niv1/topic.es.md b/01.curriculum/01.physics-chemistry-biology/01.Niv1/topic.es.md
deleted file mode 100644
index 99057209a..000000000
--- a/01.curriculum/01.physics-chemistry-biology/01.Niv1/topic.es.md
+++ /dev/null
@@ -1,5 +0,0 @@
----
-title: llanuras
-media_order: sesituersynt_400_2400.jpg
----
-
diff --git a/01.curriculum/01.physics-chemistry-biology/01.Niv1/topic.fr.md b/01.curriculum/01.physics-chemistry-biology/01.Niv1/topic.fr.md
deleted file mode 100644
index 1b197431c..000000000
--- a/01.curriculum/01.physics-chemistry-biology/01.Niv1/topic.fr.md
+++ /dev/null
@@ -1,4 +0,0 @@
----
-title: plaines
----
-