Getting Int value from script to other script

hi i need to get int value from my script Score.cs to Planemovement.cs. in score.cs its called static int score and it equals to 0 at beginning but raises during the game. if the number is >= 10 it will show an ad when the character dies and the game restarts. i have everything else set up, i just need to know how the Planemovement script can acces that int.