Mystery Science is full of lesson plans for Kindergarten and all the way up to 5th grade. The main goal of this site is to provide teachers with science lesson plans and minimize the time used in prep. The activities found in these lesson plans are fun and engaging. Worksheets and videos are also provided to aide in the execution of the lesson. The access to this website is a paid subscription, however you do receive a free trial of 6 months to give it a test drive.
The Science Learning Toolbox 