Free - Photosynthesis Comic Strip Cut, Paste, and Draw Activity
Simple Project on Hydro Electric Power Station with Turbine. (Modal) - Electrical Technology
"My Rock Report" (free)
the teacher wife: my first science unit: all about rocks! Freebie
What is in soil, plus tons of science notebook ideas for primary grades.
You can make a little robot with your kids that will draw on its own!
Make mini robots
Weathering, Erosion and Deposition Rap
Robot Kit: Make a silly moving robot from common household objects! $15
how to make your own robot--Bear electives 4d & 7d, Webelos engineering 6 (add switch & light) & craftsman. Too fun!