Free
Khan Academy
Nonprofit learning platform for math, science, reading and more.
Check the site for current terms.
Science and STEM
Science simulations, NASA resources, nature study and STEM curriculum. 10 entries, links checked Oct 17, 2026.
Free
NASA Learning Resources
“STEM resources that connect educators, students, parents and caregivers.”
Free
PhET Interactive Simulations (CU Boulder)
“Free online physics, chemistry, biology, earth science and math simulations.”
Free
PBS LearningMedia
“Thousands of free teaching resources including videos, lesson plans, and games.”
Program (check park)
NPS Junior Ranger
“Become a Junior Ranger” program at national parks.
Cost and format vary by park. Check the park page before you go.
Curriculum maker
Elemental Science
Homeschool science plans.
Pricing and offers vary. Check the site.
Curriculum maker
Exploring Nature
Nature and science resources for families and teachers.
Pricing and offers vary. Check the site.
Curriculum maker
Homeschool Nature Study
Nature study membership and curriculum.
Pricing and offers vary. Check the site.
Curriculum maker
Thinkwell
Video math and science courses.
Pricing and offers vary. Check the site.
Curriculum makerChristian
Apologia
Christian K-12 curriculum.
Pricing and offers vary. Check the site.
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