* Scholastic Science World: provides interactives, games, and videos on various science concepts.
* NOVA scienceNOW: offers interactive videos, quizzes, and multimedia resources on different scientific topics.
* Exploratorium: features online exhibits, simulations, and activities related to science and technology.
* Science Friday: presents engaging science news, interviews, and podcasts, along with interactive activities and experiments.
* The Franklin Institute: provides hands-on experiments, simulations, and interactive resources on various scientific concepts.
* ScienceNetLinks: offers lesson plans, interactives, and resources developed by scientists, educators, and museums.
* Mystery Science: provides video lessons, interactive simulations, and hands-on activities aligned with science standards.
* Khan Academy: offers free online courses and videos on a wide range of science topics, from basic concepts to advanced theories.
* Interactive Science Textbook: an open educational resource that provides interactive simulations, animations, and quizzes aligned with fifth-grade science curriculum.