Kids Discover Online [1] has tons of interactive lessons, videos and so much more available for students. They do have a monthly cost for unlimited use, BUT you can register for a free account and have access to up to 200 free lessons. That should get you through quite a few weeks if used as a supplement.
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They have several options to choose from in science & history – astronomy, historical figures, time periods, etc. Go here [1] to create your free account or click the graphic above.
Also, check out all the FREE online Homeschool resources [2]on How To Homeschool For Free!
***Be sure to join our How To Homeschool For Free Support Group [3] for daily encouragement and more great resources for your homeschooling journey!***