void Awake() {
    DontDestroyOnLoad(transform.gameObject);
 }

using UnityEngine;
using System.Collections;
using UnityEngine.UI;

public class DontDestroyScriptBetweenSceens : MonoBehaviour {
    public static int points = 100;

    void Awake() {
        DontDestroyOnLoad(transform.gameObject);
    }

    void OnLevelWasLoaded(int level) {
         Text ui =  GameObject.Find("/Canvas/Text").GetComponent<Text>();
         Debug.Log("scene was loaded");
    }
}

using UnityEngine;
using System.Collections;
using UnityEngine.UI;

public class DontDestroyScriptBetweenSceens : MonoBehaviour {
public static DontDestroyScriptBetweenSceens instance;
    public static int points = 100;

    void Awake() {
    if (!instance) {
        instance = this;
        DontDestroyOnLoad(transform.gameObject);
    } else {
        Destroy(gameObject);
    }
    }

    void OnLevelWasLoaded(int level) {
         Text ui =  GameObject.Find("/Canvas/Text").GetComponent<Text>();
         Debug.Log("scene was loaded");
    }
}