pseudoscience
noun /ˈsuːdəʊsaɪəns/,  /ˈsjuːdəʊsaɪəns/
  /ˈsuːdəʊsaɪəns/
[countable, uncountable]- a set of theories, beliefs or methods that some people claim are based on scientific fact even though in reality they are not 
- Eugenics was a pseudoscience that emphasized racial divides.
 - There's a lot of pseudoscience and misinformation here.