Sophomore internships/camps related to science, mathematics, or technology?

Hi everyone, I was wondering if someone could recommend an internship/camp that is related to science, math, or technology. I am currently a sophomore, and would appreciate any tips or help.

Also are there any camps/internships that do not require teacher recommendations? Because I want to apply to as many as possible without having to ask my teachers for a lot of their time.

Our experience is that all programs require teacher recs. What are your parameters around subject, cost, for credit, location? My kids have both done several over the years.

Cost isnt really a problem, but hopefully it would be reasonable (500/week). I live in the Washington DC area, but would be open top out of state camps/internships.

@blackbird1234‌

I let my teachers know that they should reuse recs whenever possible because I know they are busy too.