Run 2 or more scripts in different terminal windows [MAC]

I need to run 2 or more scripts in different terminal windows automatically.

Now I have these scripts.

script1.command
script2.command
script3.command

I need another script that can automatically launch all the 3 scripts in 3 different terminal windows. How can I do? What I try is to create a fourth script like this:

script1.command & script2.command & script3.command

And it works well except for the fact that it runs all the script in the same window. Note: each one of the 3 scripts runs a node js server app.