Choose a topic that has already been covered in your current science, technology, or engineering course and do further research.You can find instructional videos online, in-depth articles to read (you can use the library databases from home) or check out some of these resourcs
AACT- American Association of Chemistry Teachers
Includes activities, animations, projects, simulations, and videos for middle school, high school, and Advanced Placement/general chemistry.
https://teachchemistry.org/news/unlocked-resources-through-march-31
Simbucket
Primarily Chemistry & Physics Simulations for grades 9-12
https://www.simbucket.com/welcome-to-simbucket/
the Physics Classroom
Physics tutorials, interactives, videos, etc.
https://www.physicsclassroom.com/
Bozeman Science
Lectures, videos, etc. from Paul Anderson on all types of science.
http://www.bozemanscience.com/
Amoeba Sisters
Biology-specific videos, handouts, gifs, and comics to support high school biology. Some resources are appropriate for middle school.
https://www.amoebasisters.com/
Pearson: The Biology Place
Bio-Coach, Lab Bench, and Biology Glossary provide interactive activities and labs and pre- and post-lab assessments.
http://www.phschool.com/science/biology_place/index.html
NOVA Labs
Long-term interactive investigations in polar science, evolution, cybersecurity, RNA, clouds, energy, and the Sun
https://www.pbs.org/wgbh/nova/labs/
National Geographic Education Resource Library
Filter by grade level and topic, earth science, physics, chemistry, biology, engineering
https://www.nationalgeographic.org/education/resource-library/?q=&page=1&per_page=25
OceanTracks High School Curriculum
Free HS data modules/units that are completely digital featuring data from ocean creatures off the west coast, topics include biodiversity, conservation, human impact, etc
http://oceantracks.org/curriculum/high-school
Smithsonian Science Now
Archived recordings of past free webcasts introduce students to science concepts and practices through the lens of Smithsonian research and experts. The webcasts are primarily for middle school ages
https://naturalhistory.si.edu/education/distance-learning/smithsonian-science-how-webcast-archives
Explaining Climate Change
ExplainingClimateChange.com provides a set of peer-reviewed, interactive, web-based materials to help learners visualize and understand the underlying science of climate change.
https://explainingclimatechange.com/index.html
American Museum of Natural History
Curriculum collections and resources based upon the museum's holdings.
https://www.amnh.org/learn-teach/curriculum-collections