NASA Space Place is loaded with activities and learning resources covering many areas of science.
Meet Rov-E, a talking robot rover that can answer your questions about Mars.
Explore NASA resources for students and teachers, K-12, with a section devoted to at-home activities.
The Springfield Museums has a page devoted to at-home activities and learning resources related to exhibits and activities at the Museums.
The Massachusetts Department of Elementary and Secondary Education (DESE) Office of STEM has released a pdf containing links to STEM resources for learning at home.