Henryk said:I know that it's taught in English at German universities (at least at the ones I know).
Depends on the school you attend.
At university level I'd say much of the teaching is done in Swedish (but the study literature might often be in English), but there are also many courses where the teaching language is English.In Sweden, science is taught in Swedish. But we do have International Schools (where I went to a long time ago ), where everything is in English. We have also the Royal French school in Stockholm, where I presume that they speak French during their lessons. But overall, most schools teach science in Swedish.
You won't get more than 25% of classes in Spanish (in public schools and high schools) and only where court imposed it at parents' request (and local powers didn't refuse to apply court's ruling). Otherwise, way lower. Whether one of the subjects taught in Spanish is a science one would depend on each school/high school and I don't have data about it.Where I am (Barcelona), classes are taught primarily in Catalan, with a lot of Spanish, too,
Private schools are rare in Spain. Most schools are either public or concertadas (private but paid with public funds so, in theory, free for parents). Many/most of the few private schools available are foreign (British schools, French schools...) and some of the rest are religious being local private non-religious schools really rare. And private schools are found just at some (bigger) towns. Once said that, there are public schools in the Basque country where you can get instruction in Spanish (you learn Basque just a subject). This school year there are 10 schools and 9 high schools so no need to pay for it... unless you live in Gipuzkoa province in which case a private school is your only option... or unless you leave somewhere else but don't have access to one of the public schools with teaching in Spanish because it's full and you are among the ones that didn't get admission. In Catalonia, 4 years ago, the only option were 34 private schools offering instruction in Spanish. In the Balearic islands you can get instruction in Spanish in some private schools. In public schools, it varies depending on the politics in charge but when it has been offered, demand has been low (<10%). No idea about Galicia (it's less international than Catalonia or the Balearic Islands and I don't know how many private schools there'll be there and what language(s) do they use). Public schools there are nowadays 50% in Galician, 50% in Spanish. In Navarre and the Autonomous Community of Valencia, you can get instruction in Spanish in some public schools although not in all towns and to attend a public school in a town other than yours can be difficult or even impossible. And I guess I won't be wrong if I say that there are private schools offering it too.Could you pay to send kids to a private school in bilingual/ multilingual Spain and have instruction only in Spanish?