diff --git a/entity-framework/core/modeling/keys.md b/entity-framework/core/modeling/keys.md
index 7094a44fed..bbb8ef5bec 100644
--- a/entity-framework/core/modeling/keys.md
+++ b/entity-framework/core/modeling/keys.md
@@ -36,7 +36,7 @@ You can also configure multiple properties to be the key of an entity - this is
 
 <!--
 [PrimaryKey(nameof(State), nameof(LicensePlate))]
-internal class Car
+public class Car
 {
     public string State { get; set; }
     public string LicensePlate { get; set; }
diff --git a/samples/core/Modeling/Keys/DataAnnotations/KeyComposite.cs b/samples/core/Modeling/Keys/DataAnnotations/KeyComposite.cs
index b00ac6c6dc..e1043d0a57 100644
--- a/samples/core/Modeling/Keys/DataAnnotations/KeyComposite.cs
+++ b/samples/core/Modeling/Keys/DataAnnotations/KeyComposite.cs
@@ -9,7 +9,7 @@ internal class MyContext : DbContext
 
 #region KeyComposite
 [PrimaryKey(nameof(State), nameof(LicensePlate))]
-internal class Car
+public class Car
 {
     public string State { get; set; }
     public string LicensePlate { get; set; }
diff --git a/samples/core/Modeling/Keys/DataAnnotations/KeySingle.cs b/samples/core/Modeling/Keys/DataAnnotations/KeySingle.cs
index ed44027967..5ea3eed5ae 100644
--- a/samples/core/Modeling/Keys/DataAnnotations/KeySingle.cs
+++ b/samples/core/Modeling/Keys/DataAnnotations/KeySingle.cs
@@ -9,7 +9,7 @@ internal class MyContext : DbContext
 }
 
 #region KeySingle
-internal class Car
+public class Car
 {
     [Key]
     public string LicensePlate { get; set; }
diff --git a/samples/core/Modeling/Keys/FluentAPI/AlternateKeyComposite.cs b/samples/core/Modeling/Keys/FluentAPI/AlternateKeyComposite.cs
index e6851fea23..d766f87309 100644
--- a/samples/core/Modeling/Keys/FluentAPI/AlternateKeyComposite.cs
+++ b/samples/core/Modeling/Keys/FluentAPI/AlternateKeyComposite.cs
@@ -15,7 +15,7 @@ protected override void OnModelCreating(ModelBuilder modelBuilder)
     #endregion
 }
 
-internal class Car
+public class Car
 {
     public int CarId { get; set; }
     public string State { get; set; }
diff --git a/samples/core/Modeling/Keys/FluentAPI/AlternateKeyName.cs b/samples/core/Modeling/Keys/FluentAPI/AlternateKeyName.cs
index 19f0b879c8..3342c33195 100644
--- a/samples/core/Modeling/Keys/FluentAPI/AlternateKeyName.cs
+++ b/samples/core/Modeling/Keys/FluentAPI/AlternateKeyName.cs
@@ -16,7 +16,7 @@ protected override void OnModelCreating(ModelBuilder modelBuilder)
     #endregion
 }
 
-internal class Car
+public class Car
 {
     public int CarId { get; set; }
     public string LicensePlate { get; set; }
diff --git a/samples/core/Modeling/Keys/FluentAPI/AlternateKeySingle.cs b/samples/core/Modeling/Keys/FluentAPI/AlternateKeySingle.cs
index 7249e3ce5d..f6fb6f29a8 100644
--- a/samples/core/Modeling/Keys/FluentAPI/AlternateKeySingle.cs
+++ b/samples/core/Modeling/Keys/FluentAPI/AlternateKeySingle.cs
@@ -15,7 +15,7 @@ protected override void OnModelCreating(ModelBuilder modelBuilder)
     #endregion
 }
 
-internal class Car
+public class Car
 {
     public int CarId { get; set; }
     public string LicensePlate { get; set; }
diff --git a/samples/core/Modeling/Keys/FluentAPI/KeyComposite.cs b/samples/core/Modeling/Keys/FluentAPI/KeyComposite.cs
index c9dac89656..36672b77d4 100644
--- a/samples/core/Modeling/Keys/FluentAPI/KeyComposite.cs
+++ b/samples/core/Modeling/Keys/FluentAPI/KeyComposite.cs
@@ -15,7 +15,7 @@ protected override void OnModelCreating(ModelBuilder modelBuilder)
     #endregion
 }
 
-internal class Car
+public class Car
 {
     public string State { get; set; }
     public string LicensePlate { get; set; }
diff --git a/samples/core/Modeling/Keys/FluentAPI/KeySingle.cs b/samples/core/Modeling/Keys/FluentAPI/KeySingle.cs
index bcc0dd11ed..be6f96a50f 100644
--- a/samples/core/Modeling/Keys/FluentAPI/KeySingle.cs
+++ b/samples/core/Modeling/Keys/FluentAPI/KeySingle.cs
@@ -15,7 +15,7 @@ protected override void OnModelCreating(ModelBuilder modelBuilder)
     #endregion
 }
 
-internal class Car
+public class Car
 {
     public string LicensePlate { get; set; }
 
diff --git a/samples/core/Modeling/Keys/KeyId.cs b/samples/core/Modeling/Keys/KeyId.cs
index 789ccf47e4..d4aae24e2c 100644
--- a/samples/core/Modeling/Keys/KeyId.cs
+++ b/samples/core/Modeling/Keys/KeyId.cs
@@ -9,7 +9,7 @@ internal class MyContext : DbContext
 }
 
 #region KeyId
-internal class Car
+public class Car
 {
     public string Id { get; set; }
 
@@ -17,7 +17,7 @@ internal class Car
     public string Model { get; set; }
 }
 
-internal class Truck
+public class Truck
 {
     public string TruckId { get; set; }