Brain Pop
This site has some free videos for the kiddos!
Reading - VooksYou can try to create a homeschool account.
Reading - EpicYou can try this free for 30 days.
Cool MathMath - Splash Learn
Science - Generation Genius
Mystery Science
There is a link at the top of the website for school closures. Click that link for free science lessons.
ABCya
Starfall
Teach Your Monster to Read