MovementSpeed doesnt appear

So MovementSpeed doesnt appear in inspector and idk why, if somebody can help please do
Here is the script:

Code (CSharp):

1.  
2. using UnityEngine;
3.  
4. public class NewBehaviourScript : MonoBehaviour
5. {
6.  
7.     private float MovementSpeed = 10;
8.  
9.  
10.     private void Start()
11.     {
12.  
13.  
14.  
15.     }
16.  
17.     private void Update()
18.     {
19.         var movement = Input.GetAxis("Horizontal");
20.         transform.position += new Vector3(movement, 0, 0) * Time.deltaTime * MovementSpeed;
21.  
22.  
23.  
24.     }
25. }
26.  

 

make MovementSpeed public. private fields do not show up in the inspector and aren't serialized (persisted).

Also, this isn't a 2D question. It's a 'scripting' question.

 

Thanks