Can you put your minecraft game/worlds on a pendrive/ USB?

My laptop is going in for repair soon and i'm worried i might lose all my things save on it. This might sound really childish put i kinda put a lot of hard work into some of my worlds on minecraft and i don't want to be devastated to find out i've lost everything on my laptop. So is their any way i can put my minecraft worlds on a pendrive or save them in any way to access them again? Because when i connect to the same account on a different PC the worlds aren't there… I DON'T WANT TO LOSE THEMM!

Yes you can here's how

1. Press windows key +r to get up the run menu

2.search for %appdata%

3. Find the folder called.minecraft

4. Then go into the folder called saves

5. Copy the saves you want on to your USB

Just in case You're playing on a different system, one of these results should do the trick.

Best option is before you send the computer away for repair, do a full backup to an external drive. As when they fix your computer some companies automatically set it back to manufacturers settings, wiping out everything on the hard drive.