Dozens of biology experiments and hands-on activities

Totally free!

Future Engineers hosts online innovation challenges for K-12 students.

All challenges are free for student/classroom participation.

Search almost 3,500 of the very best STEM activities on the web. Find handpicked activities from your favorite science museums, public television stations, universities, and other educational organizations.

All activities are available to anyone, free of charge.

Space, Earth Science, and Flight focused stem projects, hands-on lesson, games, engineering activities, and more!

Totally Free!

Videos and directions for dozens and dozens of super fun science demonstrations that teachers or students can perform

Many of the demonstrations can be turned into experiments.

Totally FREE!

Common Sense Education Review

A really fun collection of science demonstrations for teachers to perform for students or students to perform on their own

A really great go-to for teachers looking for fun ideas to demonstrate science concepts

Totally FREE (Though the site sells lots of other science products.)

Search by topic or NGSS standard to find the perfect hands-on activity!

Totally FREE!

Easy-to-use app for 3D design, electronics, and coding for teachers, kids, hobbyists, and designers to imagine, design, and make anything

Ready-for-use lessons for use online or in classroom that align with standards including ISTE, Common Core, and NGSS.

Totally FREE!

Common Sense Education Review