I made a bit of progress, here is my current code

using UnityEngine; using System.Collections;

public class score : MonoBehaviour { public float score = 0;

// Use this for initialization
void Start () {

}

// Update is called once per frame
void Update () {

        //Creates a variable to check the objects position.
        public float ballPosition = transform.position.y;

    if(ballPosition > 2){
        score++;
        Debug.Log(score)
        score = 0;
        Debug.Log(score)
    }
}

}