NASA's Goddard Space Flight Center provides information about black holes in the form of a whimsical guide for would-be fictional travelers who wish to visit these fascinating objects.
NISE, the National Informal STEM Education Network, celebrates Earth Day by providing these free activities for students from pre-K to 12.
The National Informal STEM Education Network provides many educational activities, including this set focused on chemistry.
From the Jet Propulsion Laboratory, this is a page with activities grouped by grade level along with videos and links to other NASA resources.
The Council of State Science Supervisors (CSSS) have developed resources intended to help educators, families, and educational leaders during school closures. The documents are available in many languages and are editable to adapt to your local circumstances.
The Smithsonian Science Education Center has developed STEM resources to support distance Learning needs for students in grades K-8. The site is designed for everyone—students, teachers, and caregivers. It includes standards-aligned educational games, simulations, videos, eBooks, and hands-on lessons that require simple materials found at home. Some resources require technology. Others can be printed out and used in low-tech environments.
This page from the Smithsonian Institution links to professional development and education research material as well as classroom resources.
Also, see the Smithsonian listing in our At Home section for additional resources.
The Carolina Biological Supply Company offers resources and they also feature resources developed with the Smithsonian Institution. They are sorted by grade level.
Flynn Scientific offers video labs and activities to support science learning at home. The video labs include teacher guides. There are also some fee-based kits offered.