Over 3000 searchable STEM (Science, Technology, Engineering and Math) activities for kids - compiled by top science museums in the US. All are FREE, can be accessed on computer or mobile devices via the free app.
Relentlessly Fun, Deceptively Educational: Solar System with Button Planets This is so great. We will be studying the planets in CC Cycle Remember this for next time through the cycle for class project/
The Ketchup Experiment! Kid friendly site with lots of neat experiments! It has one that makes a rocket out of a film canister, which would be good for an grade space unit, but it has to many kid friendly expiriments. Great site for any science teacher.