diff --git a/crates/bevy_ecs/src/query/access.rs b/crates/bevy_ecs/src/query/access.rs
index f735f36580..25c1f39054 100644
--- a/crates/bevy_ecs/src/query/access.rs
+++ b/crates/bevy_ecs/src/query/access.rs
@@ -115,6 +115,18 @@ impl<T: SparseSetIndex> Access<T> {
             .map(SparseSetIndex::get_sparse_set_index)
             .collect()
     }
+
+    /// Returns all read accesses.
+    pub fn reads(&self) -> impl Iterator<Item = T> + '_ {
+        self.reads_and_writes
+            .difference(&self.writes)
+            .map(T::get_sparse_set_index)
+    }
+
+    /// Returns all write accesses.
+    pub fn writes(&self) -> impl Iterator<Item = T> + '_ {
+        self.writes.ones().map(T::get_sparse_set_index)
+    }
 }
 
 #[derive(Clone, Eq, PartialEq)]