diff --git a/01.curriculum/01.physics-chemistry-biology/04.Niv4/topic.es.md b/01.curriculum/01.physics-chemistry-biology/04.Niv4/topic.es.md
new file mode 100644
index 000000000..4a1a1444d
--- /dev/null
+++ b/01.curriculum/01.physics-chemistry-biology/04.Niv4/topic.es.md
@@ -0,0 +1 @@
+montañas
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