Thermal energy is demonstrated with the hand warmer reaction. Science activity measures temperature change in the chemical reaction of iron with air.
Science Fair: Solar Heating and Designing of a Solar Cooker
Picture of Lemon Batteries: Lighting an LED with Lemons
Dancing Science Project - This is such a FUN, easy to make science experiment using a batter and wire that will amaze kids from Preschool-5th grade. SO COOL!
3D Plant & Animal Cell Models
Photosynthesis 7th grade project- love the hands on and 3D effect!
Diaper Science!! One of the most fun science lessons I do!
Articulated Hand, a 7th grade science experiment.- just found out today that I'm teaching 7th grade science next year. EEK!
Easy 7th Grade Science Fair Project Ideas