find() and with() return all models, instead of single model with children

I'm working on my first Laravel project in 5.1 . I have a model Survey that has related child records defined in the model ScaleQuestions.

I want to create a route where I can look at a single survey and see along with that all of its child scale questions. I've created this route, trying to eager load one survey and all of its children: but it returns all of the survey models:

public function survey($id) {
    $survey = \App\Gt\Lib\Survey::find($id)
        ->with('scale_questions')
        ->get();
    ;
   \dump($id);
    \dump($survey);
    return view('gt/admin/survey')->with('survey',$survey);

There are (currently) 43 surveys, and only 10 child scale questions, but the dump clearly shows me it loaded the 43 surveys.

Collection {#684 ▼
  #items: array:43 [▼
    0 => Survey {#208 ▶}
    1 => Survey {#209 ▶}
    2 => Survey {#210 ▶}
    3 => Survey {#211 ▶}

When I take out get(), I get a builder object, which I don't know what to do with:

Builder {#161 ▼
  #query: Builder {#154 ▶}
  #model: Survey {#165 ▶}
  #eagerLoad: array:1 [▶]
  #macros: []
  #onDelete: null
  #passthru: array:10 [▶]
}

It seems that it's an unprocessed query, since I can't get any properties off of it:

public function survey($id) {
    $survey = \App\Gt\Lib\Survey::find($id)
        ->with('scale_questions');
        \dump($survey->id);

Gives me this:

ErrorException in AdminSurveysController.php line 31: Undefined property: Illuminate\Database\Eloquent\Builder::$id

How do I eager-load the single survey and only its child questions?