I am a big fan of welding. Joining materials is an incredibly useful skill.
That's cool! Welding can be fun.  What about welding interests you?
Arc welding is fairly striking to me. Gas tungsten arc welding can produce great welds
Arc welding? I've never heard of that. What is Arc Welding?
Arc welding involves using metal to join metal via electricity and heat
That's cool! I didn't know welding involves electricity? How in the world do you use electricity to weld? 
It can be very useful in fusing certain materials. It also provides energy that is necessary in the heating process
Awesome! Now I want to be a welder so I can be a real life Thor!
Thor is an interesting superhero> I think his hammer was welded by the gods!