load levels in game

Unity Engine
1

Working on a simple game and i plan to make levels like clearing the first level than entering to the other one.

This is how i am doing in a wrong manner.
Created all the levels 1,2,3,4,5 in a 3d space. like i am creating a level1 with all its assets which is defined in 0 origin area and than i am making the other level2 with all its assets far away from it and the other and so on.

Than i plan to move the camera at different parts of scene as the levels cleared to the other levels.

And as i came to know about the proper way with Application.LoadLevel (1);

But here i don’t know how to set and arrange all the assets of level1 into a single level and than load it as level1.
:x
If i come to know this than i can set the same for the other levels also.

Right now i am very much confused with loadlevel thing, how to use it and create the levels as per this.

2

level = scene in unity.

to get them into a specific scene ensure that only those assets are present and store the scene

3

Thanks dreamora, understood just as you stated so simply. Ok here it says can’t load level2 and says for adding level add level2 in build settings, So i added it by opening the level 2 and clicking on add scene.
And it worked fine. Is it the right manner i am going now.

Also just want to know about as the level2 appears just instantly so can we make it to appear it in animation manner like coming from behind or right or in a fade manner.