EdHesive: Free Computer Science courses for students and teachers (provided by Amazon).
Everyday Earth: Interactive video earth science based curriculum supplement.
Positive Physics: An online physics problem and video bank designed for conceptual, standard, honors or AP1 physics.
SEPUP: Science simulations, scientist profiles, and other digital resources for middle school science and high school biology
The Science Spot: Science projects that can be completed with or without Internet access
Steve Spangler Science: Tons of science experiments that you can do at home
NASA Climate Kids: This NASA initiative covers a wide range of topics including weather, climate, atmosphere, water, energy, plants, and animals.
Ask Dr. Universe: a science-education project from Washington State University. Kids can send Dr. Universe any question they may have about history, geography, plants, animals, technology, engineering, math, culture, and more
Weather Wiz Kids: From rainbows to tornadoes and winter storms to tsunamis, meteorologist Crystal Wicker breaks down the fascinating world of weather.
Smithsonian Ocean: This educational website hosted by the Smithsonian Museum takes a deep dive into ocean life.
Access Mars: Explore the surface of Mars on the Curiosity Rover.
KidVision: Learn about all sorts of neat things like what marine biologists do and how honey is made, to name a few,